Computer gk 29 may

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

(1) Class E 

(2) Class B 

(3) Class C 

(4) Class D 

(5) Class A

Q.2. Which of the following devices translates hostnames into IP addresses?

(1) DNS Server 

(2) Hub 

(3) DHCP Server 

(4) Firewall 

(5) MAC 

Q.3. Which of the following devices takes data sent from one network device and forwards it to all devices on the network regardless of the intended recipient?

(1) Switch 

(2) DNS Server 

(3) Hub 

(4) Gateway 

(5) All 

Q.4. Which of the following devices takes data sent from one network device and forwards it to the destination node based on MAC address?

(1) Hub 

(2) Switch 

(3) Gateway 

(4) Modem 

(5) All 

Q.5. Which of the following devices is used to connect same network segments and manage the traffic between them?

(1) Switch 

(2) Hub 

(3) Modem 

(4) Repeater 

(5) Bridge 

Q.6. Which of the following network devices/systems translates data from one format to another?

(1) DHCP Server 

(2) Hub 

(3) Gateway 

(4) NIC 

(5) Switch 

Q.7. Switch is a device of _________ Layer of OSI Model.

(1) Network Layer 

(2) Data Link Layer 

(3) Application Layer 

(4) Session Layer 

(5) None of these

Q.8. HUB is a _________ Device and Switch is a ________ Device.

(1) Unicast, Multicast 

(2) Multicast, Unicast 

(3) Broadcast, Unicast 

(4) Unicast, Unicast 

(5) Multicast, Multicast 

Q.9. Star Topology is based on a Central Device that can be __________.

(1) HUB 

(2) Switch 

(3) Router 

(4) Both 1 and 2 

(5) Gateway

Q.10. Which of the following devices modulates digital signals into analog signals that can be sent over traditional telephone lines?

(1) Router 

(2) Gateway 

(3) Switch 

(4) Modem 

(5) NIC 

ANSWERS

Q.1. (3) Class C 

Q.2. (1) DNS Server 

Q.3. (3) Hub 

Q.4. (2) Switch 

Q.5. (5) Bridge is used to connect same network segments and manage the traffic between them.

Q.6. (3) Gateway network devices/systems translate data from one format to another.

Q.7. (2) Switches operate on the second layer of OSI Model, that is Data Link Layer.

Q.8. (3) Hub is a Broadcasting Device and Switch is a Unicasting Device.

Q.9. (4) Hub and Switch are used in Star topology.

Computer gk 28 may

Q.1. A communication processor that connects dissimilar networks by providing the translation from one set of protocol to another is—

(1) Modem 

(2) Gateway 

(3) Router 

(4) Bridge 

(5) All of these 

Q.2. A group of computers and other devices connected together is called________.

(1) Network 

(2) Intranet 

(3) Internetworking 

(4) Both 2 and 3 

(5) Extranet 

Q.3. Transmission Lines are also called as________.

(1) Circuits 

(2) Channels 

(3) Trunks 

(4) Circuits channels, or trunks 

(5) Wire 

Q.4. The Switching Elements are also called as _____.

(1) Host 

(2) Terminal 

(3) Interface Message Processors (IMPs) 

(4) Both 1 and 2 

(5) Subnet 

Q.5. The distance a simple signal can travel in one period is called ________.

(1) Wavelength 

(2) Frequency 

(3) Propagation speed 

(4) Both 1 and 2 

(5) None of these 

Q.6. 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 

Q.7. Which protocol does Ping use?

(1) TCP 

(2) ARP 

(3) ICMP 

(4) BootP 

(5) UDP 

Q.8. 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. 

Q.9. Which of the following services use TCP?

(1) DHCP 

(2) SMTP 

(3) FTP 

(4) HTTP 

(5) 2, 3 and 4 

Q.10. 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 

ANSWERS

Q.1. (2) Gateway 

Q.2. (1) A group of computers and other devices connected together is called Network.

Q.3. (4) Transmission Lines are also called as circuits channels, or trunks

Q.4. (3) The Switching Elements are also called as IMPs.

Q.5. (1) The distance a simple signal can travel in one period is called wavelength.

Q.6. (2) 12 

Q.7. (3) ICMP 

Q.8. (1) A network that has only one entry and exit point. 

Q.9. (5) SMTP, HTTP and FTP use TCP.

Q.10. (3) Firewall