Assistant & UDC • 2025 • Paper-II
Android applications are packaged in what file format?
A)
APK
B)
EXE
C)
ZIP
D)
JAR
Android applications are packaged in the APK (Android Package Kit) format. An APK file is essentially a ZIP-formatted archive that contains all the necessary components for an app to run on the Android operating system, including the compiled code (dex files), resources (images, layouts), and the AndroidManifest.xml file.
Why other options are incorrect:
- b. EXE: This is the standard executable file format for Windows operating systems.
- c. ZIP: While an APK is technically based on the ZIP compression format, '.zip' is a general-purpose archive format and not the specific application package format for Android.
- d. JAR: Java Archive (JAR) files are used to aggregate many Java class files into one file for Java applications, but Android uses the specialized APK format for installation and deployment.
Assistant & UDC • 2025 • Paper-II
From the top of a 195m high cliff, the angle of depression of the top and bottom are 30° and 60° respectively. Then, the height of the tower is:
A)
130m
B)
90m
C)
120m
D)
100m
Let the height of the cliff be H = 195m and the height of the tower be h. Let the distance between the cliff and the tower be 'd'.
1. From the top of the cliff, the angle of depression to the bottom of the tower is 60°. This forms a right-angled triangle where the opposite side is the height of the cliff (195m) and the adjacent side is the distance (d).
tan(60°) = 195 / d
√3 = 195 / d
d = 195 / √3 = (195√3) / 3 = 65√3 meters.
2. From the top of the cliff, the angle of depression to the top of the tower is 30°. The vertical distance from the top of the cliff to the top of the tower is (H - h) = (195 - h).
tan(30°) = (195 - h) / d
1 / √3 = (195 - h) / (65√3)
3. Solving for h:
(65√3) / √3 = 195 - h
65 = 195 - h
h = 195 - 65
h = 130 meters.
Therefore, the height of the tower is 130m. Option (a) is correct, while options (b), (c), and (d) are incorrect based on the trigonometric calculations.
Assistant & UDC • 2025 • Paper-II
Statements: 1. X is 7 meters tall, Y is half as high and Z is 3 times the height of X. 2. P is taller than Z but shorter than A and B. Conclusions: I. B is the tallest of all. II. The average height of X, Y and Z is less than 10 meters. Find which of the given conclusions logically follows from the given statements.
A)
Only conclusion I follows
B)
Only conclusion II follows
C)
Both I and II follow
D)
Neither I nor II follows
From statement 1: X = 7 m. Y is half of X, so Y = 3.5 m. Z is 3 times X, so Z = 21 m.
From statement 2: P is taller than Z but shorter than A and B. So the order is A > P > Z and B > P > Z, which means A and B are both taller than Z. However, we cannot decide whether A is taller than B or B is taller than A, so conclusion I (“B is the tallest of all”) does not follow.
Now check conclusion II: average height of X, Y, and Z = (7 + 3.5 + 21) / 3 = 31.5 / 3 = 10.5 m. This is not less than 10 m, so conclusion II also does not follow.
Therefore, neither conclusion follows. The correct option is d.
Why other options are incorrect:
- a: Incorrect because conclusion I does not follow.
- b: Incorrect because conclusion II does not follow.
- c: Incorrect because neither conclusion follows.
- d: Correct because both conclusions fail logically.
Assistant & UDC • 2025 • Paper-II
Meningitis : Brain : : Cirrhosis : ?
A)
Lungs
B)
Brain
C)
Liver
D)
Heart
This is an analogy question where the relationship between the first pair of words must be applied to the second pair.
1. Analyze the first pair: 'Meningitis : Brain'. Meningitis is an inflammation of the protective membranes covering the brain and spinal cord; essentially, it is a disease that primarily affects the brain/central nervous system.
2. Identify the relationship: The relationship is [Disease] : [Organ it affects].
3. Apply the relationship to the second pair: 'Cirrhosis : ?'. Cirrhosis is a late-stage scarring (fibrosis) of the liver caused by many forms of liver diseases.
4. Evaluate the options:
- a. Lungs: Affected by diseases like Pneumonia or Emphysema.
- b. Brain: Affected by Meningitis (as seen in the first pair).
- c. Liver: The organ specifically affected by Cirrhosis.
- d. Heart: Affected by diseases like Myocardial Infarction.
Therefore, since Cirrhosis is a disease of the liver, the correct answer is Liver.
Assistant & UDC • 2025 • Paper-II
What percent of 75 is 9?
A)
40%
B)
30%
C)
20%
D)
12%
To find what percent of 75 is 9, we use the basic percentage formula: (Part / Whole) × 100.
Step 1: Identify the 'Part' and the 'Whole'.
- Part = 9
- Whole = 75
Step 2: Set up the equation:
Percentage = (9 / 75) × 100
Step 3: Simplify the fraction 9/75.
Both 9 and 75 are divisible by 3.
9 ÷ 3 = 3
75 ÷ 3 = 25
So, 9/75 = 3/25
Step 4: Multiply by 100.
(3 / 25) × 100 = 3 × (100 / 25)
= 3 × 4
= 12%
Verification of options:
- a. 40% of 75 = 0.40 * 75 = 30 (Incorrect)
- b. 30% of 75 = 0.30 * 75 = 22.5 (Incorrect)
- c. 20% of 75 = 0.20 * 75 = 15 (Incorrect)
- d. 12% of 75 = 0.12 * 75 = 9 (Correct)
Assistant & UDC • 2025 • Paper-II
A man travelled a distance of 61 km in 9 hours. He travelled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. The distance travelled on bicycle is :
A)
40km
B)
36km
C)
30km
D)
45km
Let the time travelled on the bicycle be 't' hours. Since the total time of travel is 9 hours, the time travelled on foot must be (9 - t) hours.
We know that Distance = Speed × Time.
1. Distance travelled on bicycle = 9 km/hr × t = 9t km
2. Distance travelled on foot = 4 km/hr × (9 - t) = (36 - 4t) km
The total distance travelled is given as 61 km. Therefore:
9t + (36 - 4t) = 61
5t + 36 = 61
5t = 61 - 36
5t = 25
t = 5 hours
Now, we calculate the distance travelled on the bicycle:
Distance = Speed × Time = 9 km/hr × 5 hours = 45 km.
Verification:
Distance on foot = 4 km/hr × (9 - 5) = 4 × 4 = 16 km.
Total distance = 45 km + 16 km = 61 km. This matches the question statement.
Comparing with options:
a. 40km (Incorrect)
b. 36km (Incorrect)
c. 30km (Incorrect)
d. 45km (Correct)
Assistant & UDC • 2025 • Paper-II
Which advanced MS Word feature allows automatic generation of citations and bibliography in different styles (APA, MLA, Chicago)?
A)
Track Changes
B)
Reference Manager
C)
Insert Footnote
D)
Table of Authorities
The correct answer is 'Reference Manager' (found under the 'References' tab in MS Word). This feature allows users to input source details (author, title, year, etc.) and automatically generate in-text citations and a complete bibliography or works cited list. It supports various academic styles such as APA, MLA, and Chicago, and allows the user to switch between these styles globally with a single click.
Why other options are incorrect:
- a. Track Changes: This is a review tool used to record edits made to a document; it has nothing to do with citations.
- c. Insert Footnote: While footnotes can be used for citations, they are manual entries at the bottom of the page and do not automatically generate a formatted bibliography in specific styles like APA or MLA.
- d. Table of Authorities: This is a specialized feature used primarily in legal documents to list cases, statutes, and rules cited in the text, rather than general academic citations and bibliographies.
Assistant & UDC • 2025 • Paper-II
In Excel, which formula correctly adds the value in cell A1 from Sheet2 to the value in cell B1 of the current sheet?
A)
=B1+Sheet2!A1
B)
=B1+A1(Sheet2)
C)
=B1&Sheet2!A1
D)
=SUM(B1,Sheet2A1)
In Microsoft Excel, referencing a cell from a different worksheet requires a specific syntax: 'SheetName!CellAddress'.
1. Analysis of Option (a): '=B1+Sheet2!A1' correctly uses the addition operator (+) and the exclamation mark (!) to separate the sheet name (Sheet2) from the cell reference (A1). This is the standard syntax for cross-sheet calculations.
2. Analysis of Option (b): '=B1+A1(Sheet2)' is syntactically incorrect. Excel does not use parentheses to denote the source sheet.
3. Analysis of Option (c): '=B1&Sheet2!A1' uses the ampersand (&) symbol, which is the concatenation operator. This would join the two values as text (e.g., if B1 is 10 and Sheet2!A1 is 5, the result would be '105' instead of 15).
4. Analysis of Option (d): '=SUM(B1,Sheet2A1)' is incorrect because it lacks the exclamation mark (!) between the sheet name and the cell reference, which will result in a #NAME? error.
Assistant & UDC • 2025 • Paper-II
In Microsoft Word, the shortcut “Ctrl + Shift + N” applies:
A)
New page
B)
Numbered list
C)
Normal style
D)
New document
In Microsoft Word, the keyboard shortcut 'Ctrl + Shift + N' is specifically used to apply the 'Normal' style to the selected text or the current paragraph. This resets the formatting of the text to the default style defined for the document.
Analysis of other options:
- Option (a) New page: The shortcut for a page break is 'Ctrl + Enter'.
- Option (b) Numbered list: There is no default single-combination shortcut like Ctrl+Shift+N for numbered lists; these are typically accessed via the Ribbon or custom shortcuts.
- Option (d) New document: The shortcut to create a new blank document is 'Ctrl + N'.
Assistant & UDC • 2025 • Paper-II
In Excel, which of the following is not a valid chart type?
A)
Line Chart
B)
Pie Chart
C)
Cylinder Chart
D)
Flowchart
In Microsoft Excel, charts are used to represent numerical data visually.
1. **Line Chart (Option a):** A standard valid chart type used to show trends over time.
2. **Pie Chart (Option b):** A standard valid chart type used to show proportions of a whole.
3. **Cylinder Chart (Option c):** A valid variation of the 3D Column chart where the bars are rendered as cylinders.
4. **Flowchart (Option d):** A flowchart is a diagram that represents a process, workflow, or step-by-step sequence. While you can create a flowchart in Excel using 'Shapes' or 'SmartArt', it is not a 'Chart Type' found in the 'Insert Chart' menu. Charts are data-driven; flowcharts are diagram-driven.
Therefore, Flowchart is not a valid chart type in Excel.
Assistant & UDC • 2025 • Paper-II
Which of the following is the correct order of the OSI model layers (bottom to top)?
A)
Application, Transport, Session, Network, Data Link, Physical, Presentation
B)
Physical, Data Link, Network, Transport, Session, Presentation, Application
C)
Physical, Data Link, Network, Session, Transport, Presentation, Application
D)
Transport, Network, Session, Physical, Data Link, Application, Presentation
The OSI (Open Systems Interconnection) model is a conceptual framework used to understand network communications. It consists of seven layers. When ordered from bottom (Layer 1) to top (Layer 7), the sequence is as follows:
1. Physical Layer (Bottom): Deals with the physical connection and raw bitstreams.
2. Data Link Layer: Handles node-to-node data transfer and error correction (e.g., Ethernet).
3. Network Layer: Manages routing and logical addressing (e.g., IP).
4. Transport Layer: Ensures reliable data transfer and flow control (e.g., TCP/UDP).
5. Session Layer: Manages sessions between applications.
6. Presentation Layer: Translates, encrypts, and compresses data (e.g., JPEG, ASCII).
7. Application Layer (Top): The interface that interacts directly with the end-user software (e.g., HTTP, FTP).
Comparing this to the options:
- Option (a) is the order from top to bottom (mostly), but incorrectly placed Presentation.
- Option (b) matches the correct bottom-to-top sequence exactly.
- Option (c) incorrectly swaps the Session and Transport layers.
- Option (d) is completely out of order.
Assistant & UDC • 2025 • Paper-II
A set of rules followed by each computer on a network for communication is called:
A)
Web
B)
HTTP
C)
Domain
D)
Protocol
In computer networking, a 'Protocol' is defined as a formal set of rules and conventions that govern how data is exchanged between devices on a network. Without these rules, computers would not be able to understand the electrical signals or data packets sent by another device.
Why other options are incorrect:
- a. Web (World Wide Web): This is an information system where documents and other web resources are identified by URLs and interlinked by hypertext; it is a service that runs on top of the internet, not the set of rules itself.
- b. HTTP (Hypertext Transfer Protocol): While HTTP is indeed a protocol, it is a *specific* protocol used for transferring web pages. The question asks for the general term for 'a set of rules,' making 'Protocol' the more comprehensive and correct answer.
- c. Domain: A domain is a distinct subset of the internet with a common set of rules or a specific name (like google.com) used to identify a network or website; it is an addressing mechanism, not a communication rule set.
Assistant & UDC • 2025 • Paper-II
Which type of software acts as a mediator between hardware and user applications?
A)
Utility Software
B)
Firmware
C)
Middleware
D)
Operating System
The Operating System (OS) is the primary system software that manages computer hardware and software resources. It acts as an intermediary or mediator between the computer hardware and the user applications. Without an OS, every application would need to include its own code to communicate directly with the hardware (like the CPU, RAM, and Disk), which would be inefficient and complex.
Why other options are incorrect:
- a. Utility Software: These are programs designed to help analyze, configure, optimize or maintain a computer (e.g., antivirus, disk defragmenters). They run on top of the OS, not as a mediator between hardware and apps.
- b. Firmware: This is a specific type of software etched directly into a hardware device (like the BIOS/UEFI). While it provides low-level control, it does not manage the general interaction between high-level user applications and hardware.
- c. Middleware: This is software that lies between two different applications or services to enable communication (e.g., connecting a database to a web server). It mediates between software components, not between hardware and software.
Assistant & UDC • 2025 • Paper-II
Which of these is the primary application of VoIP?
A)
Encrypting document
B)
Faster file transfer
C)
Making calls over internet
D)
Offline access to notes
VoIP stands for 'Voice over Internet Protocol'. It is a technology that allows you to make voice calls using a broadband Internet connection instead of a traditional (analog) phone line.
Step-by-step analysis of options:
- Option (a) 'Encrypting document' refers to cryptography and data security, not voice communication.
- Option (b) 'Faster file transfer' refers to protocols like FTP (File Transfer Protocol) or SFTP, which handle data movement, not real-time voice transmission.
- Option (c) 'Making calls over internet' is the exact definition and primary purpose of VoIP (e.g., WhatsApp calls, Skype, Zoom).
- Option (d) 'Offline access to notes' refers to local storage or caching mechanisms in software applications, which is unrelated to networking protocols for voice.
Assistant & UDC • 2025 • Paper-II
Which protocol is primarily used to send emails?
A)
FTP
B)
HTTP
C)
POP3
D)
SMTP
The question asks for the protocol primarily used to 'send' emails.
1. **SMTP (Simple Mail Transfer Protocol)**: This is the standard protocol used for sending emails from a client (like Outlook or Gmail) to a mail server, and for transferring emails between mail servers. It acts as the 'push' mechanism for email delivery.
2. **POP3 (Post Office Protocol version 3)**: This is used for 'receiving' or retrieving emails from a server to a local client. It typically downloads the email and deletes it from the server, making it a 'pull' mechanism.
3. **HTTP (Hypertext Transfer Protocol)**: This is the foundation of data communication for the World Wide Web (loading webpages). While webmail interfaces use HTTP to display the mail, the underlying transport of the email between servers is handled by SMTP.
4. **FTP (File Transfer Protocol)**: This is used specifically for the transfer of files between a client and a server on a computer network, not for email communication.
Therefore, SMTP is the correct protocol for sending emails.
Assistant & UDC • 2025 • Paper-II
The device that connects multiple networks and determines the best path for data packets is called:
A)
Hub
B)
Switch
C)
Repeater
D)
Router
The question asks for a device that performs two specific functions: connecting multiple networks and determining the best path for data packets.
1. **Router (Correct):** A router operates at the Network Layer (Layer 3) of the OSI model. Its primary purpose is to connect different networks (e.g., connecting a home local area network to the internet). It uses routing tables and protocols (like OSPF or BGP) to determine the most efficient path (the 'best path') for data packets to reach their destination.
2. **Hub (Incorrect):** A hub is a physical layer (Layer 1) device that simply broadcasts incoming data packets to all connected ports. It does not understand network addresses or determine paths.
3. **Switch (Incorrect):** A switch operates at the Data Link Layer (Layer 2). While it connects multiple devices within a single network (LAN), it uses MAC addresses to send data to a specific device rather than routing data between different networks.
4. **Repeater (Incorrect):** A repeater is a physical layer (Layer 1) device used to regenerate or amplify a signal to allow it to travel longer distances. It has no intelligence regarding paths or network connectivity.
Assistant & UDC • 2025 • Paper-II
In networking, the primary function of a MAC address is:
A)
To uniquely identify a device on a local network
B)
To encrypt transmitted data
C)
To locate websites on the Internet
D)
To translate domain names into IP addresses
Step-by-step reasoning:
1. **Definition of MAC Address**: A Media Access Control (MAC) address is a unique hardware identifier assigned to a Network Interface Controller (NIC) by the manufacturer. It operates at the Data Link Layer (Layer 2) of the OSI model.
2. **Primary Function**: Its purpose is to provide a unique physical address for a device so that data frames can be delivered to the correct hardware destination within a local area network (LAN).
3. **Evaluating Option (a)**: This is correct. MAC addresses ensure that within a local segment, a switch or hub can direct traffic to the specific physical device intended.
4. **Evaluating Option (b)**: Incorrect. Encryption is handled by protocols like SSL/TLS or IPsec, not by the MAC address.
5. **Evaluating Option (c)**: Incorrect. Locating websites on the Internet is the function of IP addresses (Network Layer) and routing protocols.
6. **Evaluating Option (d)**: Incorrect. Translating domain names (e.g., google.com) into IP addresses is the specific function of the Domain Name System (DNS).
Assistant & UDC • 2025 • Paper-II
Which GUI element allows multiple applications to run simultaneously by sharing system resources?
A)
Multithreading
B)
Multitasking
C)
Multiprocessing
D)
Multiuser
Step-by-step reasoning:
1. Analysis of the requirement: The question asks for the mechanism that allows multiple applications (processes) to run simultaneously by sharing system resources.
2. Evaluating Option (b) Multitasking: Multitasking is the ability of an operating system to execute multiple tasks (applications) seemingly at the same time. It achieves this by switching the CPU rapidly between tasks (time-sharing), allowing the user to interact with multiple GUI applications simultaneously.
3. Evaluating Option (a) Multithreading: This refers to the ability of a single application (process) to divide itself into two or more simultaneously running threads. It is a subset of multitasking but occurs within a single application, not across multiple applications.
4. Evaluating Option (c) Multiprocessing: This refers to the use of two or more Central Processing Units (CPUs) within a single computer system to execute instructions. While it enhances multitasking, multitasking can occur on a single-core processor via time-slicing.
5. Evaluating Option (d) Multiuser: This is a property of an OS that allows multiple users to access the computer system concurrently (e.g., via terminals or SSH), which is different from the execution of multiple applications by a single user.
Conclusion: Multitasking is the correct term for running multiple applications simultaneously through resource sharing.
Assistant & UDC • 2025 • Paper-II
In a URL such as https://www.example.com:443/index.html, the number 443 refers to:
A)
Port number
B)
IP address
C)
File size
D)
Security certificate ID
A Uniform Resource Locator (URL) is composed of several parts: the protocol (https), the domain name (www.example.com), the port number (443), and the path to the resource (/index.html).
1. **Port Number (Option a):** In networking, a port is a communication endpoint. The number following the colon (:) in a URL specifies the port on the server that the client should connect to. Port 443 is the standard default port for HTTPS (Hypertext Transfer Protocol Secure) traffic.
2. **IP Address (Option b):** An IP address (e.g., 192.168.1.1) is a numerical label assigned to each device connected to a computer network. While the domain 'www.example.com' resolves to an IP address via DNS, the number 443 is not an IP address.
3. **File Size (Option c):** File size refers to the amount of data a file occupies on a disk (e.g., 10 KB). It is never specified within the URL structure.
4. **Security Certificate ID (Option d):** While HTTPS uses SSL/TLS certificates for encryption, the certificate ID is part of the certificate metadata exchanged during the handshake process, not a numerical value embedded in the URL string.
Assistant & UDC • 2025 • Paper-II
Which technology is commonly used to securely connect private networks through public network for collaboration and resource access?
A)
Proxy Server
B)
Remote Desktop
C)
Firewall
D)
Virtual Private Network
Step-by-step reasoning:
1. Analysis of the requirement: The question asks for a technology that allows 'securely connecting private networks' via a 'public network' (like the Internet) for 'collaboration and resource access'.
2. Evaluating Option (d) Virtual Private Network (VPN): A VPN creates an encrypted 'tunnel' over a public network. This allows users to send and receive data as if their computing devices were directly connected to the private network, ensuring confidentiality and security. This perfectly matches the question's criteria.
3. Evaluating Option (a) Proxy Server: A proxy server acts as an intermediary between a client and a server. While it can provide anonymity or caching, its primary purpose is not to securely bridge two private networks over a public one.
4. Evaluating Option (b) Remote Desktop: This is a software application that allows a user to control another computer remotely. While it provides access to resources, it is a tool for remote control, not a networking technology used to connect entire private networks securely.
5. Evaluating Option (c) Firewall: A firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It protects a network but does not provide the connectivity mechanism to link private networks across a public one.
Conclusion: The Virtual Private Network (VPN) is the only technology listed designed specifically for secure, encrypted connectivity between private networks over public infrastructure.
Assistant & UDC • 2025 • Paper-II
What is a web cookie in the context of internet browsing?
A)
Sent from a website and stored in user’s web browser while a user is browsing a website
B)
Sent from user and stored in the server while a user is browsing a website
C)
Sent from root server to all servers
D)
Sent from the root server to other root servers
A web cookie (HTTP cookie) is a small piece of data that a server sends to a user's web browser. The browser stores this data and sends it back to the same server with every subsequent request. This mechanism allows websites to 'remember' stateful information, such as login sessions, user preferences, or items in a shopping cart.
Analysis of options:
- Option (a) is correct because it accurately describes the flow: Website (Server) -> Web Browser (Client) for storage.
- Option (b) is incorrect because cookies are primarily stored on the client-side (browser), not the server-side (though server-side sessions exist, the 'cookie' itself is the client-side token).
- Option (c) and (d) are incorrect as they describe server-to-server communication or DNS root server functions, which have nothing to do with the definition of a web cookie.
Assistant & UDC • 2025 • Paper-II
In an examination, 78% of the total students who appeared were successful. If the total number of failures was 176 and 34% got first class, then how many students got first class?
A)
272
B)
112
C)
210
D)
254
Step-by-step solution:
1. **Find the percentage of failures**: Since 78% of the students were successful, the percentage of students who failed is 100% - 78% = 22%.
2. **Calculate the total number of students**: We are given that the total number of failures is 176. Therefore, 22% of the total students (T) = 176.
0.22 * T = 176
T = 176 / 0.22
T = 800
3. **Calculate the number of students who got first class**: The problem states that 34% of the total students got first class.
First Class Students = 34% of 800
First Class Students = 0.34 * 800
First Class Students = 272.
Verification of options:
- Option (a) 272 matches our calculation.
- Options (b), (c), and (d) are incorrect as they do not correspond to 34% of the total population derived from the failure rate.
Assistant & UDC • 2025 • Paper-II
The cost of a pineapple is Rs.7 whereas a watermelon costs Rs.5. A man spends a total of Rs.38 on these fruits. The number of whole pineapples that the man purchases is:
A)
2
B)
3
C)
4
D)
Data inadequate
Let the number of pineapples be 'p' and the number of watermelons be 'w'. Both p and w must be non-negative integers because the question specifies 'whole' fruits.
The total cost equation is: 7p + 5w = 38.
We can solve this by testing integer values for p:
1. If p = 1: 7(1) + 5w = 38 => 5w = 31 (Not divisible by 5)
2. If p = 2: 7(2) + 5w = 38 => 14 + 5w = 38 => 5w = 24 (Not divisible by 5)
3. If p = 3: 7(3) + 5w = 38 => 21 + 5w = 38 => 5w = 17 (Not divisible by 5)
4. If p = 4: 7(4) + 5w = 38 => 28 + 5w = 38 => 5w = 10 => w = 2 (Valid integer solution)
5. If p = 5: 7(5) + 5w = 38 => 35 + 5w = 38 => 5w = 3 (Not divisible by 5)
6. If p = 6: 7(6) = 42, which exceeds the total budget of 38.
Therefore, the only possible integer solution is p = 4 and w = 2. The number of whole pineapples purchased is 4.
Assistant & UDC • 2025 • Paper-II
Computer processing speed is usually expressed in?
A)
Bits per second (bps)
B)
Dots Per Inch (DPI)
C)
Gigahertz (GHz)
D)
Megabytes per sec (MB/s)
Computer processing speed refers to the clock speed of the Central Processing Unit (CPU), which is the number of cycles a CPU can execute per second. This is measured in Hertz (Hz). Modern processors operate at billions of cycles per second, which is expressed as Gigahertz (GHz).
Analysis of other options:
- a. Bits per second (bps): This is a measure of data transfer rate or network bandwidth, not processing speed.
- b. Dots Per Inch (DPI): This is a measure of spatial printing or image scanner resolution.
- d. Megabytes per sec (MB/s): This is a measure of data throughput or storage read/write speed (e.g., for a hard drive or SSD).
Assistant & UDC • 2025 • Paper-II
In MS Word, the shortcut key Ctrl + H is used for:
A)
Copy
B)
Find
C)
Replace
D)
Highlight
In Microsoft Word, the shortcut key Ctrl + H is specifically assigned to open the 'Find and Replace' dialog box, focusing on the 'Replace' tab. This allows users to search for a specific word or phrase and replace it with another throughout the document.
Analysis of other options:
- Option (a) Copy: The shortcut key for Copy is Ctrl + C.
- Option (b) Find: The shortcut key for Find is Ctrl + F.
- Option (d) Highlight: There is no standard single-combination Ctrl shortcut for the Highlight tool; it is typically accessed via the Ribbon menu.