Legal Metrology • Computer Science & Engineering Paper-III
A property that describes various characteristics of entity
A)
ER Diagram
B)
Column
C)
Relationship
D)
Attribute
Based on established principles in Computer Science & Engineering, the correct and most clinically/technically appropriate choice is 'Attribute' (Option D).
Legal Metrology • Computer Science & Engineering Paper-III
Two computers C1 and C2 are configured as follows. C1 has IP address 203.197.2.53 and netmask 255.255.128.0. C2 has IP address 203.197.75.201 and netmask 255.255.192.0. which one of the following statements is true?
A)
Cl and C2 both assume they are on the same network
B)
Cl and C2 both assume they are on different networks
C)
C2 assumes C1 is on same network, but Cl assumes C2 is on a different network
D)
Cl assumes C2 is on same network, but C2 assumes C1 is on a different network
Based on established principles in Computer Science & Engineering, the correct and most clinically/technically appropriate choice is 'Cl assumes C2 is on same network, but C2 assumes C1 is on a different network' (Option D).
Legal Metrology • Computer Science & Engineering Paper-III
In tuple relational calculus P1 AND P2 is equivalent to
A)
(4P1 OR —P2)
B)
=(4P1 OR 4P2)
C)
—=(P1 OR —P2)
D)
—(-—P1 OR P2)
Option B is correct: =(4P1 OR 4P2)
Legal Metrology • Computer Science & Engineering Paper-III
The telephone network is a good example of
A)
Half-duplex
B)
Full duplex
C)
Simplex
D)
Four -wire circuit
Based on established principles in Computer Science & Engineering, the correct and most clinically/technically appropriate choice is 'Simplex' (Option C).
Legal Metrology • Computer Science & Engineering Paper-III
In software maintenance tackling the changes in the hardware or software environment where the software works, is
A)
Corrective Maintenance
B)
Adaptive Maintenance
C)
Perfective Maintenance
D)
Preventive Maintenance
Adaptive maintenance involves modifying the software to keep it usable in a changing environment.
Legal Metrology • Computer Science & Engineering Paper-III
Give three major categories of risk from the following: 1. Schedule Risk 2. Project Risk 3. Technical Risk 4. Business Risk
A)
1,2 and3
B)
2,3 and 4
C)
1,2 and4
D)
1,3 and4
The standard major software-project risk categories are schedule, technical, and business risks; “project risk” is not one of the three listed categories here.
Legal Metrology • Computer Science & Engineering Paper-III
Transmission impairment in which signal loses strength due to the resistance of transmission medium
A)
Attenuation
B)
Distortion
C)
Noise
D)
Decibel
Attenuation is signal-strength loss caused by resistance/impedance and other transmission-media effects.
Legal Metrology • Computer Science & Engineering Paper-III
A topology that consists of multiple devices connected by connectors or the main cable is called
A)
Mesh
B)
Ring
C)
Bus
D)
Star
Based on established principles in Computer Science & Engineering, the correct and most clinically/technically appropriate choice is 'Mesh' (Option A).
Legal Metrology • Computer Science & Engineering Paper-III
Difficult reconnection and troubleshooting (fault isolation) are disadvantages of
A)
Star topology
B)
Mesh topology
C)
Bus topology
D)
Ring topology
Mesh topology requires many links and is difficult to troubleshoot/fault-isolate.
Legal Metrology • Computer Science & Engineering Paper-III
Why there is a need for Software management?
A)
Itis done with few people with fixed skills and abilities
B)
Software development is complex and expensive
C)
Software development is not time consuming
D)
Software development creates job
Based on established principles in Computer Science & Engineering, the correct and most clinically/technically appropriate choice is 'Itis done with few people with fixed skills and abilities' (Option A).
Legal Metrology • Computer Science & Engineering Paper-III
The network that provides high-speed connectivity or transmission speed is
A)
MAN
B)
LAN
C)
WAN
D)
Internetwork
A LAN provides high-speed connectivity over a limited geographic area.
Legal Metrology • Computer Science & Engineering Paper-III
Which of the following is not a UML diagram used to create a system analysis model?
A)
Activity diagram
B)
State diagram
C)
Class diagram
D)
Dataflow diagram
In the context of Computer Science & Engineering, the most appropriate and technically accurate answer is 'Dataflow diagram' (Option D).
Legal Metrology • Computer Science & Engineering Paper-III
It defines overall design of the database
A)
Code
B)
Data definition language
C)
Application program
D)
Schema
A schema defines the overall logical design/structure of the database.
Legal Metrology • Computer Science & Engineering Paper-III
For HTTP, the webserver usually runs on port number
A)
21
B)
40
C)
43
D)
80
HTTP uses port 80 by default.
Legal Metrology • Computer Science & Engineering Paper-III
A list consists of last names, first names, addresses and pin codes. If all people in the list have the same last name and same pin code a useful key would be
A)
the pin code
B)
the last name
C)
the compound key lastname and pincode
D)
the compound key first name and last name
Since last name and PIN are identical across everyone, they cannot be a unique key; first name + last name is the better composite candidate.
Legal Metrology • Computer Science & Engineering Paper-III
This is not a valid software configuration item
A)
Version control
B)
Test data
C)
Case tools
D)
Documentation
Version control is a process/tooling function rather than a configuration item itself; test data, CASE artifacts, and documents can be configuration items.
Legal Metrology • Computer Science & Engineering Paper-III
Which of the following best describes a single-bit error?
A)
A single bit is inverted
B)
A single bit per transmission is inverted
C)
Asingle bit per data unit is inverted
D)
A single bit per multiple bits is inverted
A single-bit error means one bit in a data unit is flipped.
Legal Metrology • Computer Science & Engineering Paper-III
Orderly grouping of independent components linked together according to a plan to achieve a specific objective is called
A)
Data
B)
System
C)
Relationship
D)
Interconnection
A system is an organized collection of components linked according to a plan to achieve an objective.
Legal Metrology • Computer Science & Engineering Paper-III
The metadata is created by
A)
Query interpreter
B)
DDL interpreter
C)
DML compiler
D)
DML pre-processor
The DDL (Data Definition Language) interpreter processes database schemas and generates metadata.
Legal Metrology • Computer Science & Engineering Paper-III
Cohesion metrics and coupling metrics are metrics in which level of design?
A)
User Interface design
B)
Pattern-based design
C)
Architectural design
D)
Component-level design
In the context of Computer Science & Engineering, the most appropriate and technically accurate answer is 'Component-level design' (Option D).
Legal Metrology • Computer Science & Engineering Paper-III
Which of the following device allows sharing of a broadband Internet connection?
A)
adapter
B)
hub
C)
router
D)
plug
A router forwards data packets between computer networks, allowing multiple devices to share an internet connection.
Legal Metrology • Computer Science & Engineering Paper-III
When two or more users are waiting for data locked by each other, such situations are known to be
A)
Dead-lock
B)
Object-lock
C)
Resource-lock
D)
Process-lock
Based on established principles in Computer Science & Engineering, the correct and most clinically/technically appropriate choice is 'Object-lock' (Option B).
Legal Metrology • Computer Science & Engineering Paper-III
The two files that are used during operation of the DBMS.
A)
Data dictionary and query language
B)
Data dictionary and transaction log
C)
Query languages and utilities
D)
DML and query language
A DBMS commonly relies on the data dictionary and transaction log during operation.
Legal Metrology • Computer Science & Engineering Paper-III
What is the simplest model of software development paradigm?
A)
Spiral model
B)
Big Bang model
C)
V-model
D)
Waterfall model
The waterfall model is the simplest classical sequential software-development paradigm.
Legal Metrology • Computer Science & Engineering Paper-III
Specialization ,in an E-R diagram, is represented by a
A)
Dashed arrow-head
B)
Double arrow-head
C)
Hollow arrow-head
D)
Solid arrow-head
Specialization/generalization is conventionally drawn with a hollow triangle/arrowhead toward the superclass.
