DRDO CEPTAM-10 Computer Science Paper Solution : 12 Jan 2023

Q.1 What is the full form of W3C?

• A) World wide web consortium
• B) Word wide web consortium
• C) World wide web center
• D) World wide web command

Q.2 What is the full form of SMTP?

• A) Simple Mail Transfer Protocol
• B) Simple Mail Transfer Program
• C) Simple Message Transfer Program
• D) Service Mail Transfer Protocol

Q.3 Which testing is involved in the SRS (Software Requirements Specification) Document?

• A) White Box Testing
• B) Black Box Testing
• C) Gray Box Testing
• D) Integration Testing

Q.4 In CRUD, what does 'U' stand for?

• A) URL
• B) Underflow
• C) Underline
• D) Update

Q.5 In which language is the Unix Operating System primarily written?

• A) C++
• B) C
• C) Assembly
• D) Fortran

Q.6 Which of the following algorithms is NOT used for congestion control?

• A) Traffic aware routing
• B) Routing Information Protocol
• C) Load shedding
• D) Admission Control

Q.7 What is the full form of CHAP?

• A) Change Handshake Authentication Protocol
• B) Challenge Handshake Authentication Protocol
• C) Challenge Handshake Authorize Protocol
• D) Challenge Handshake Authentication Protocol

Q.8 The Spiral Model of software development was created by?

• A) Charles Babbage
• B) Allen Turing
• C) IBM
• D) Barry Boehm

Q.9 A minimal super key is called a?

• A) Primary Key
• B) Candidate Key
• C) Foreign Key
• D) Alternate Key

Q.10 In an ER Model, what does a double line represent?

• A) Entity Set
• B) Full Dependent
• C) Relationship
• D) Attribute Set

Q.11 Compilers and editors software come under which type of software?

• A) Application Software
• B) Utility Software
• C) System Software
• D) Operating System

Q.12 The output of a NOR Gate is high when?

• A) Both inputs are high
• B) Both inputs are low
• C) One input is high and other is low
• D) One input is low and other is high

Q.13 Which of the following is NOT a binary operator in relational algebra?

• A) Join
• B) Project
• C) Union
• D) Intersection

Q.14 Assembly language uses code written as?

• A) Mnemonic
• B) Bit Code
• C) Binary Digit
• D) Byte Code

Q.15 Which of the following is NOT an element of X.509 Certificates?

• A) Signature
• B) Serial Modifier
• C) Issuer unique identifier
• D) Byte Code

Q.16 Cookies were originally designed for which side of communication?

• A) Server side
• B) Client Side
• C) Both A & B
• D) Socket programming

Q.17 Which logic family has the lowest power dissipation?

• A) ECL
• B) TTL
• C) CMOS
• D) DTL

Q.18 How many AND Gates are required to realize the expression Y = CD + EF + G?

• A) 2
• B) 3
• C) 4
• D) 5

Q.19 The mapping of files is managed by?

• A) Page Table
• B) Metadata
• C) Virtual Memory
• D) File System

Q.20 What is one advantage of setting a DMZ (Demilitarized Zone) with two firewalls?

• A) You can do load balancing
• B) Metadata
• C) You can do stateful packet filtering
• D) Improved network performance

Q.21 Which transmission media provides the highest transmission speed in a network?

• A) Coaxial Cable
• B) Twisted pair cable
• C) Optical fiber
• D) Electrical cable

Q.22 Which of the following features makes AJAX unique?

• A) It works with all databases
• B) It is server side
• C) It uses python
• D) It makes data requests asynchronously

Q.23 Which of the following statements is NOT true regarding JavaScript?

• A) It is loosely typed
• B) It is object oriented
• C) It is event driven
• D) It cannot run in stand-alone mode

Q.24 Which of the following statements is true regarding HTTP?

• A) Browsers use only HTTP
• B) It does not maintain connection info
• C) It routes based on content
• D) It uses universal resource identifiers

Q.25 What is the PDU (Protocol Data Unit) for the application layer?

• A) Bit
• B) Frame
• C) Message
• D) Segment

”Q.26

• A) ”fb=[count

Q.27 How many basic features are required for a programming language to be purely Object-Oriented (OOP)?

• A) 7
• B) 8
• C) 5
• D) 4

Q.28 What is the most expensive phase in the SDLC (Software Development Life Cycle)?

• A) Implementation
• B) Testing
• C) Maintenance
• D) Design

Q.29 What is the process of finding and correcting errors in code?

• A) Debugging
• B) Testing
• C) Maintenance
• D) Compiling

Q.30 In the V-model, each development phase is associated with a specific?

• A) Design phase
• B) Implementation phase
• C) Development phase
• D) Testing Phase

Q.31 What is the memory address space of the 8085 microprocessor?

• A) 8 KB
• B) 64 KB
• C) 126 KB
• D) 16 KB

Q.32 What is the most expensive phase in the SDLC?

• A) Design
• B) Implementation
• C) Testing
• D) Maintenance

Q.33 Which clause creates a temporary relation for the query on which it is defined?

• A) With
• B) Select
• C) Where
• D) From

Q.34 In a paging system with a 4KB page size, what is the internal fragmentation for a 38KB process?

• A) 2 KB
• B) 4 KB
• C) 8 KB
• D) 6 KB

Q.51 How do you access data members of a class in C++?

• A) Dot, arrow or direct call
• B) Dot Operator
• C) Arrow operator
• D) Dot or arrow as required

Q.52 The cost of storing a bit is minimum in which storage type?

• A) Cache
• B) Register
• C) RAM
• D) Magnetic tape

Q.53 Half of a Byte (4 bits) is equal to a?

• A) Nibble
• B) Bit
• C) Data
• D) Half byte

Q.54 Which of the following is NOT a fundamental property of an object in OOP?

• A) Identity
• B) Properties
• C) Attributes
• D) Names

Q.55 Which is the highest priority interrupt in the 8085 microprocessor?

• A) TRAP
• B) RST 6.5
• C) INTR
• D) RST 7.5

Q.56 For designing a normal RDBMS, which normal form is usually considered adequate?

• A) 4NF
• B) 3NF
• C) 2NF
• D) 5NF

Q.57 Which phase is NOT part of the standard software life cycle (SDLC)?

• A) Coding
• B) Testing
• C) Maintenance
• D) Abstraction

Q.58 An n-bit microprocessor typically has an n-bit?

• A) program counter
• B) address register
• C) ALU
• D) instruction register

Q.59 Which of the following is a non-linear data structure?

• A) Linked list
• B) Tree
• C) Arrays
• D) Stack

Q.60 Most packet switches use which forwarding principle?

• A) Stop and wait
• B) Stored and forward
• C) Store and wait
• D) Stop and forward

Q.61 Which of the following is NOT a phase of the classical waterfall model?

• A) Feasibility study
• B) Requirement Analysis
• C) Building prototype
• D) Maintenance

Q.62 Which SQL clause is used with the 'BETWEEN' operator?

• A) HAVING
• B) SELECT
• C) WHERE
• D) LIKE

Q.63 Which of the following is a single-tasking operating system?

• A) Windows
• B) UNIX
• C) MS-DOS
• D) Linux

Q.64 The number of tuples (rows) in a relation is called its?

• A) Attributes
• B) Degree
• C) Cardinality
• D) Domain

Q.65 The extended ASCII code uses how many bits per character?

• A) 7
• B) 10
• C) 8
• D) 4

Q.66 What is the default subnet mask for a Class C IP address like 192.168.123.132?

• A) 296.345.444.255
• B) 255.255.255.240
• C) 239.444.555.255
• D) 255.255.255.0

Q.67 In a network with N nodes, how many cable links are needed for a fully connected mesh topology?

• A) N+1
• B) N(N-1)
• C) N(N-1)/2
• D) N-1

Q.68 How is a certificate chain represented in X.509 notation for user A to get user B's key via CAs X1 and X2?

• A) X2 X1 X1 B
• B) X1 X1 X2 A
• C) X1 X2 X2 B
• D) X1 X2 X2 A

Q.69 For a programming language to be 'Pure OOP', which of the following is true?

• A) Follow 3 or more features
• B) Follow at least 1 feature
• C) Must follow all rules of OOP
• D) Follow only 3 features

Q.70 Which feature of OOP reduced the reliance on nested classes for data protection?

• A) Binding
• B) Abstraction
• C) Encapsulation
• D) Inheritance