MCQ Exam Test

Q1

Which of the following statements is incorrect?

A Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line.
B HDLC is a standard synchronous communication protocol.
C RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCE indicates that it is ready to accept data.
D RTS/CTS is the way the terminal indicates ringing

Q2

Now-a-days computers all over the world can talk to each other. Which is one of the special accessories essential for this purpose?

A Keyboard
B Modem
C Scanner
D Fax

Q3

If communication software can be called the "traffic cop" of a micro communication system, then what should the modem be called?

A Park
B Bridge
C Interface
D Link

Q4

On a class C network with a subnet mask of 192, how many subnets are available?

A 254
B 62
C 30
D 2

Q5

Parity bit is

A an error-detecting code based on a summation operation performed on the bits to be checked.
B a check bit appended to an array of binary digits to make the sum of all the binary digits.
C a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
D the ratio of the number of data units in error to the total number of data units

Q6

Alex is required to provide information on how many people are using the network at any one time. Which network will enable him to do so?

A Server-based
B Token-Ring
C Ethernet
D Star

Q7

Which of the following best describes the scopes on each DHCP server, in the absence of configuration problems with DHCP addresses, if you use multiple DHCP servers in your environment?

A Unique to that subnet only
B For different subnets
C For no more than two subnets
D For no subnets

Q8

A 4 KHz noiseless channel with one sample every 125 per sec, is used to transmit digital signals. Find the bit rate (bits per second) that are sent, if CCITT 2.048 Mbps encoding is used.

A 500 Kbps
B 32 Kbps
C 8 Kbps
D 64 Kbps

Q9

Which IP address class has few hosts per network?

A D
B C
C B
D A

Q10

Which of the following file retrieval methods use hypermedia?

A HTTP
B WAIS
C Veronica
D Archie

Q11

The main difference between TCP and UDP is

A UDP is connection oriented where as TCP is datagram service
B TCP is an Internet protocol where as UDP is an ATM protocol
C UDP is a datagram where as TCP is a connection oriented service
D All of the above

Q12

What operates in the Data Link and the Network layer?

A NIC
B Bridge
C Brouter
D Router

Q13

Which of the following specifies the network address and host address of the computer?

A The IP address
B The TCP address
C The subnet mask
D The default gateway

Q14

What is the port number for POP3?

A 110
B 90
C 80
D 49

Q15

Which application allows a user to access and change remote files without actual transfer?

A TELNET
B NFS
C FTP
D DNS

Q16

Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.

A Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology
B Ethernet, because it is cabled using fiber-optic cable
C Token-Ring, because it uses a MAU
D Ethernet, because it can be set up with most topologies and can use multiple transfer speeds

Q17

Microprogramming is

A assembly language programming
B programming of minicomputers
C control unit programming
D macro programming of microcomputers

Q18

A network that requires human intervention of route signals is called a

A bus network
B ring network
C star network
D T-switched network

Q19

In a synchronous modem, the receive equalizer is known as

A adaptive equalizer
B impairment equalizer
C statistical equalizer
D compromise equalizer

Q20

How can you see the address of the DHCP server from which a client received its IP address?

A By using Advanced Properties of TCP/IP
B By using IPCONFIG/ALL
C By using DHCPINFO
D By pinging DHCP

Q21

Which of the following provides a storage mechanism for incoming mail but does not allow a user to download messages selectively?

A SMTP
B DHCP
C IMAP
D POP3

Q22

You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 12 hosts and a maximum number of subnets?

A 255.255.255.192
B 255.255.255.224
C 255.255.255. 240
D 255.255.255.248

Q23

For connecting modem, a computer must be equipped with a port that conforms to the RS-232 standard of the Electronic Industries Association of America. What do the letters 'RS' stand for?

A Recognised standard
B Random sequence
C Recommended standard
D Registered source

Q24

What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?

A E-mail
B Bulletin board system (BBS)
C Teleconferencing
D Videoconferencing

Q25

To make possible the efficient on-line servicing of many teleprocessing system users on large computer systems, designers are developing

A communication systems
B multiprogramming systems
C virtual storage systems
D All of the above

computer-networking - Part 10

Which of the following statements is incorrect?

Now-a-days computers all over the world can talk to each other. Which is one of the special accessories essential for this purpose?

If communication software can be called the "traffic cop" of a micro communication system, then what should the modem be called?

On a class C network with a subnet mask of 192, how many subnets are available?

Parity bit is

Alex is required to provide information on how many people are using the network at any one time. Which network will enable him to do so?

Which of the following best describes the scopes on each DHCP server, in the absence of configuration problems with DHCP addresses, if you use multiple DHCP servers in your environment?

A 4 KHz noiseless channel with one sample every 125 per sec, is used to transmit digital signals. Find the bit rate (bits per second) that are sent, if CCITT 2.048 Mbps encoding is used.

Which IP address class has few hosts per network?

Which of the following file retrieval methods use hypermedia?

The main difference between TCP and UDP is

What operates in the Data Link and the Network layer?

Which of the following specifies the network address and host address of the computer?

What is the port number for POP3?

Which application allows a user to access and change remote files without actual transfer?

Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.

Microprogramming is

A network that requires human intervention of route signals is called a

In a synchronous modem, the receive equalizer is known as

How can you see the address of the DHCP server from which a client received its IP address?

Which of the following provides a storage mechanism for incoming mail but does not allow a user to download messages selectively?

You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 12 hosts and a maximum number of subnets?

For connecting modem, a computer must be equipped with a port that conforms to the RS-232 standard of the Electronic Industries Association of America. What do the letters 'RS' stand for?

What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?

To make possible the efficient on-line servicing of many teleprocessing system users on large computer systems, designers are developing

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