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Monday, May 28, 2018

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 

Sunday, May 27, 2018

Computer gk 27 may

Q.1. Which one is a valid IP address?

(1) 300.215.317.3 

(2) 302.215.417.5 

(3) 202.50.20.148 

(4) 202-5-20-148 

(5) None of these 

Q.2. Which type of transmission media is known as regular telephone wire?

(1) Wi-Fi 

(2) Twisted-pair wire 

(3) Fiber optic cable 

(4) Coaxial cable 

(5) All 

Q.3. What is the purpose of a firewall on a computer?

(1) To protect a computer from unauthorized access 

(2) To protect a computer in case of fire 

(3) To protect a computer from spam 

(4) All of the above 

(5) None of these 

Q.4. Which of the following layer is not in OSI model?

(1) Physical layer 

(2) Internet layer 

(3) Network layer 

(4) Transport layer 

(5) Application layer

Q.5. Copper wire is an example of?

(1) Guided Transmission Media 

(2) Shield Media 

(3) Group Media 

(4) Unguided Transmission Media 

(5) None of these 

Q.6. An unauthorized user is a network _______ issue.

(1) Performance 

(2) Reliability 

(3) Security 

(4) Firewall 

(5) None of these 

Q.7. Which topology requires a central controller or hub?

(1) Mesh 

(2) Star 

(3) Bus 

(4) Ring 

(5) Tree 

Q.8. Which topology requires a multipoint connection?

(1) Mesh 

(2) Star 

(3) Bus 

(4) Ring 

(5) Tree 

Q.9. Which of the following refers to a small, single-site network?

(1) LAN 

(2) DSL 

(3) RAM 

(4) USB 

(5) CPU

Q.10. Computers connected to a LAN 

(Local Area Network) can—

(1) Run faster 

(2) Go on line 

(3) Share information and/or share peripheral equipment 

(4) E-mail 

(5) None of these 

ANSWERS

Q.1. (3) 202.50.20.148 

Q.2. (2) Twisted-pair wire of transmission media is known as regular telephone wire.

Q.3. (1) To protect a computer from unauthorized access 

Q.4. (2) Internet layer 

Q.5. (1) Guided Transmission Media 

Q.6. (3) Security 

Q.7. (2) Star 

Q.8. (3) Bus topology requires a multipoint connection.

Q.9. (1) Local Area Network refer to a small, single-site network.

Q.10. (3) Computers connected to a LAN (Local Area Network) can share information and/ or share peripheral equipment.