Computer Knowledge Questions | RBI GRADE "B" AND NICL AO 2017 | 31.05.2017

Q.1. How long is an IPv6 address?

(1) 32 bits

(2) 128 bits

(3) 128 bytes

(4) 64 bits

(5) 48 bits

Ans. (2) An IPv6 address is 128 bits long.

Q.2. How many collision domains are created when you segment a network with a 12-port switch?

(1) 1

(2) 12

(3) 5

(4) 2

(5) 10

Ans. (2) 12

Q.3. Which protocol does Ping use?

(1) TCP

(2) ARP

(3) ICMP

(4) BootP

(5) UDP

Ans. (3) ICMP is the protocol at the Network layer that is used to send echo requests and replies.

Q.4. What PPP protocol provides dynamic addressing, authentication, and multilink?

(1) NCP

(2) HDLC

(3) X.25

(4) LCP

(5) None of these

Ans. (4) Link Control Protocol in the PPP stack provides dynamic addressing, authentication, and multilink.

Q.5. What is a stub network?

(1) A network that has only one entry and exit point.

(2) A network with only one entry and no exit point.

(3) A network with more than one exit point.

(4) A network with more than one exit and entry point.

(5) A network with more than one entry point

Ans. (1) A network that has only one entry and exit point.

Q.6. Which of the following services use TCP?

(1) DHCP

(2) SMTP

(3) FTP

(4) HTTP 

(5) 2, 3 and 4

Ans. (5) SMTP, HTTP and FTP use TCP.

Q.7. Which of the following terms is used to describe a hardware- or software-based device that protects networks from outside threats?

(1) NIC

(2) Gateway

(3) Firewall

(4) Hub

(5) Server

Ans. (3) Firewall

Q.8. Which class of IP address provides a maximum of only 254 host addresses per network ID?

(1) Class A

(2) Class B

(3) Class C

(4) Class D

(5) Class E

Ans. (3) A Class C network address has only 8 bits for defining hosts: 28 - 2 = 254.

Q.9. Which of the following devices translates hostnames into IP addresses?

(1) DNS Server

(2) Hub

(3) DHCP Server

(4) Firewall

(5) MAC

Ans. (1) DNS Server

Q.10. Which of the following devices is a PC component that connects the computer to the network?

(1) Bridge

(2) Router

(3) DNS Server

(4) Gateway

(5) NIC

Ans. (5) NIC (Network Interface Card) is a physical PC Component which is used to connects the computer to the network.