SSC Scientific Assistant (IMD) Exam : Held on 24 Nov 2017 Shift-2

(Computer Science)

QID : 901 - The basic operations performed by a computer are___.

Options:
1) Arithmetic operation
2) Logical operation
3) Storage and relative
4) All options are correct
Correct Answer: All options are correct

QID : 902 - Which type of computers uses the 8-bit code called EBCDIC?

Options:
1) Minicomputers
2) Microcomputers
3) Mainframe computers
4) Supercomputer
Correct Answer: Mainframe computers

QID : 903 - Which electronic component was made out of semiconductor material?

Options:
1) Vacuum tubes
2) Transistors
3) ICs
4) All options are correct
Correct Answer: ICs

 QID : 904 - The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency, and transfer time. Rotational latency refers to

Options:
1) the time its takes for the platter to make a full rotation
2) the time it takes for the read-write head to move into position over the appropriate track
3) the time it takes for the platter to rotate the correct sector under the head
4) None of these
Correct Answer: the time its takes for the platter to make a full rotation

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QID : 905 - The idea of cache memory is based on___.

Options:
1) on the property of locality of reference
2) on the heuristic 90-10 rule
3) on the fact that references generally tend to cluster
4) All options are correct
Correct Answer: on the property of locality of reference

QID : 906 - Write Through technique is used in which memory for updating the data?

Options:
1) Virtual memory
2) Main memory
3) Auxiliary memory
4) Cache memory
Correct Answer: Cache memory

QID : 907 - When CPU is executing a Program that is part of the Operating System, it is said to be in

Options:
1) Interrupt mode
2) System mode
3) Half mode
4) Simplex mode
Correct Answer: System mode

QID : 908 - A floating point number that has a O in the MSB of mantissa is said to have

Options:
1) Overflow
2) Underflow
3) Important number
4) Undefined
Correct Answer: Underflow

QID : 909 - The load instruction is mostly used to designate a transfer from memory to a processor register known as

Options:
1) Accumulator
2) Instruction Register
3) Program counter
4) Memory address Register
Correct Answer: Accumulator
 
QID : 910 - Microinstructions are stored in control memory groups, with each group specifying a

Options:
1) Routine
2) Subroutine
3) Vector
4) Address
Correct Answer: Routine
 
QID : 911 - What is the content of Stack Pointer (SP)?

Options:
1) Address of the current instruction
2) Address of the next instruction
3) Address of the top element of the stack
4) Size of the stack.
Correct Answer: Address of the top element of the stack

QID : 912 - What type of work as computers are client computers (most of the time) in a client-server system?

Options:
1) Mainframe
2) Mini-computer
3) Microcomputer
4) PDA
Correct Answer: Microcomputer

QID : 913 - What characteristic of read-only memory (ROM) makes it useful?

Options:
1) ROM information can be easily updated.
2) Data in ROM is non-volatile, that is, it remains there even without electrical power.
3) ROM provides very large amounts of inexpensive data storage.
4) ROM chips are easily swapped between different brands of computers.
Correct Answer: Data in ROM is non-volatile, that is, it remains there even without electrical power.

QID : 914 - In analog computer

Options:
1) Input is first converted to digital form
2) Input is never converted to digital form
3) Output is displayed in digital form
4) All options are correct
Correct Answer: Input is never converted to digital form

QID : 915 - ___________ is an OOP principle.

Options:
1) Structured programming
2) Procedural programming
3) Inheritance
4) Linking
Correct Answer: Inheritance

QID : 916 - What is the subnetwork number of a host with an IP address of 172.16.66.0/21?

Options:
1) 172.16.36.0

2) 172.16.48.0

3) 172.16.64.0

4) 172.16.0.0
Correct Answer: 172.16.64.0

QID : 917 - Controlling access to a network by analyzing the incoming and outgoing packets is called

Options:
1) IP Filtering
2) Data Filtering
3) Packet Filtering
4) Firewall Filtering
Correct Answer: Packet Filtering

QID : 918 - DNS is the abbreviation of

Options:
1) Dynamic Name System
2) Dynamic Network System
3) Domain Name System
4) Domain Network Service
Correct Answer: Domain Name System

QID : 919 - What does Router do in a network?

Options:
1) Forwards a packet to all outgoing links
2) Forwards a packet to the next free outgoing link
3) Determines on which outing link a packet is to be forwarded
4) Forwards a packet to all outgoing links except the originated link
Correct Answer: Determines on which outing link a packet is to be forwarded

QID : 920 - Routing tables of a router keeps track of

Options:
1) MAC Address Assignments
2) Port Assignments to network devices
3) Distribute IP address to network devices
4) Routes to use for forwarding data to its destination
Correct Answer: Routes to use for forwarding data to its destination

QID : 921 - What does the port number in a TCP connection specify?

Options:
1) It specifies the communication process on the two end systems
2) It specifies the quality of the data & connection
3) It specifies the size of data
4) All options are correct
Correct Answer: It specifies the communication process on the two end systems

QID : 922 - Which is true to change the text color to red?

Options:
1) <BODY BGCOLOR=RED>
2) <BODY TEXT=RED>
3) <BODY COLOR=RED>
4) None of these
Correct Answer: <BODY TEXT=RED>

QID : 923 - Choose the correct HTML code to create an email link?

Options:
1) <A HREF = “user1@business.com”></A>
2) <A HREF = “mailto:“user1@business.com”></A>
3) <MAIL>“user1@business.com </MAIL>
4) <A MAILHREF = “user1@business.com”></A>
Correct Answer: <A HREF = “mailto:“user1@business.com”></A>

QID : 924 - Which topology is used in Ethernet?

Options:
1) Bus Topology
2) Ring Topology
3) Tree Topology
4) Mesh Topology
Correct Answer: Bus Topology

QID : 925 - Ethernet is a standard for

Options:
1) LAN
2) MAN
3) WAN
4) All options are correct
Correct Answer: LAN

QID : 926 - What is a compiler?

Options:
1) A compiler does a conversion line by line as the program is run
2) A compiler converts the whole of a high-level program code into machine code in one step
3) A compiler is a general-purpose language providing very efficient execution
4) None of these
Correct Answer: A compiler converts the whole of a high-level program code into machine code in one step

QID : 927 - What is a web browser?

Options:
1) a program that can display a web page
2) a program used to view html documents
3) it enables user to access the resources of internet
4) All options are correct
Correct Answer: All options are correct

QID : 928 - What is the latest version of CSS available?

Options:
1) CSS2

2) CSS3

3) CSS3.1

4) CSS4
Correct Answer: CSS4

QID : 929 - How many layers are present in the TCP/IP Reference model?

Options:
1) 6

2) 7

3) 5

4) 4
Correct Answer: 4

QID : 930 - A top-to-bottom relationship among the items in a database is established by a

Options:
1) Hierarchical schema
2) Network schema
3) Relational schema
4) All options are correct
Correct Answer: Hierarchical schema

QID : 931 - Which of these is not a database object?

Options:
1) Index
2) Sequence
3) Cursor
4) Trigger
Correct Answer: Cursor

QID : 932 - Data items grouped together for storage purposes are called a:

Options:
1) Record
2) Title
3) List
4) String
Correct Answer: Record
 
QID : 933 - A set of objects that share a common structure and a common behaviour is called:

Options:
1) Object
2) Class
3) Entity
4) None of these
Correct Answer: Class

QID : 934 - Which of the following is an example of network database?

Options:
1) IDBS

2) Ingress

3) Oracle

4) DBMS
Correct Answer IDBS

QID : 935 - What is used for database security?

Options:
1) data encryption
2) a view
3) finger print
4) All options are correct
Correct Answer: All options are correct

QID : 936 - Which of the following is not a proper state of transaction?

Options:
1) Partially aborted
2) Partially committed
3) Aborted
4) Committed
Correct Answer: Partially aborted

QID : 937 - Assume transaction A holds a share lock R. If a transaction B also requests for a shared lock on R.

Options:
1) it will result in a deadlock situation.
2) it will immediately be granted.
3) it will immediately be rejected.
4) it will be granted as soon as it is released by A.
Correct Answer: it will immediately be granted.
 

QID : 938 - Which command is used to remove all rows from a table?

Options:
1) Delete
2) Remove
3) Truncate
4) Both 'Delete' and 'Remove'
Correct Answer: Truncate
 
QID : 939 - Which command is used to add a column to an existing table?

Options:
1) Create
2) Update
3) Alter
4) None of these