Q.1

Which of the following types of channels moves data relatively slowly?

  • wideband channel
  • voiceband channel
  • narrowband channel
  • broadband channel
  • None of the above
Q.2

Which of the following technique is used for fragment?

  • a technique used in best-effort delivery systems to avoid endlessly looping packets
  • a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
  • one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
  • All of the above
  • None of the above
Q.3

Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?

  • FTP
  • SNMP
  • SMTP
  • RPC
  • None of the above
Q.4

The _____ houses the switches in token ring.

  • transceiver
  • nine-pin connector
  • MAU
  • NIC
  • None of the above
Q.5

Which of the following is required to communicate between two computers?

  • communications software
  • protocol
  • communications hardware
  • access to transmission medium
  • All of the above
Q.6

Which of the following does not allow multiple users or devices to share one communications line?

  • doubleplexer
  • multipplexer
  • concentrator
  • controller
  • None of the above
Q.7

What device separates a single network into two segments but lets the two segments appear as one to higher protocols?

  • Switch
  • Bridge
  • Gateway
  • Router
Q.8

Carrier is

  • One or more conductors that serve as a common connection for a related group of devices
  • a continuous frequency capable of being modulated or impressed with a second signal
  • the condition when two or more sections attempt to use the same channel at the same time
  • a collection of interconnected functional units that provides a data communications service among stations attached to the network
  • None of the above
Q.9

ICMP (Internet Control Message Protocol) is

  • a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
  • a TCP/IP high level protocol for transferring files from one machine to another
  • a protocol used to monitor computers
  • a protocol that handles error and control messages
  • None of the above
Q.10

Which network topology is considered passive?

  • Cross
  • Ring
  • Star
  • Mesh
  • Bus
Q.11

The OCR reading unit attached to a POS terminal is called a

  • light pen
  • wand
  • cursor
  • All of the above
  • None of the above
Q.12

What can greatly reduce TCP/IP configuration problems?

  • WINS Server
  • WINS Proxy
  • DHCP Server
  • PDC
  • None of the above
Q.13

Demodulation is the process of

  • converting digital signals to analog signals
  • converting analog signals to digital signals
  • combining many low speed channels into one high speed channel
  • dividing the high-speed signals into frequency bands
  • None of the above
Q.14

If you get both local and remote echoes, every character you type will appear on the screen

  • once
  • twice
  • three times
  • never
  • None of the above
Q.15

If a firm wanted to transmit data from 1,punched cards to a remote computer, they would use a(n)

  • POS terminal
  • data collection terminal
  • batch processing terminal
  • intelligent terminal
  • None of the above
Q.16

Sending a file from your personal computer's primary memory or disk to another computer is called

  • uploading
  • downloading
  • logging on
  • hang on
  • None of the above
Q.17

With an IP address set starting withyou currently have six offices that you are treating as subnets. Plans are in place to openmore offices before the end of the year. What subnet mask should you use to satisfy the needed number of subnets and maximize the number of hosts available at each site?

  • 192
  • 224
  • 240
  • 248
  • 252
Q.18

An example of an analog communication method is

  • laser beam
  • microwave
  • voice grade telephone line
  • All of the above
  • None of the above
Q.19

Devices interconnected by the LAN should include

  • Computers and terminals
  • mass storage device, printers and plotters
  • bridges and gateways
  • All of the above
  • None of the above
Q.20

The transmission signal coding method of TI carrier is called

  • Bipolar
  • NRZ
  • Manchester
  • Binary
  • None of the above
Q.21

The encoding method specified in the EIA-standard is _____.

  • NRZ-I
  • NRZ-L
  • Manchester
  • Differential Manchester
Q.22

Bandlimited signal is

  • transmission of signals without modulation
  • a signal all of whose energy is contained within a finite frequency range
  • simultaneous transmission of data to a number of stations
  • All of the above
  • None of the above
Q.23

In CRC there is no error if the remainder at the receiver is _____.

  • equal to the remainder at the sender
  • zero
  • nonzero
  • the quotient at the sender
Q.24

Which of the following statement is incorrect?

  • The Addresses Resolution Protocol, ARP, allows a host to find the physical address of a target host on the same physical network, given only the target IP address.
  • The sender's IP - to- physical address binding is included in every ARP broadcast; receivers update the IP-to-Physical address binding information in their cache before processing an ARP packet.
  • ARP is a low-level protocol that hides the underlying network physical addressing, permitting us to assign IP-addresses of our choice to every machine.
  • All of the above
  • None of the above
Q.25

What part of 192.168.10.is the Network ID, assuming a default subnet mask?

  • 192
  • 192.168.10
  • 0.0.0.5
  • 51
  • None of the above
Q.26

Which address is the loopback address?

  • 0.0.0.1
  • 127.0.0.0
  • 127.0.0.1
  • 255.255.255.255
  • None of the above
Q.27

What is the name of the software package that allows people to send electronic mail along a network of computers and workstations?

  • Memory resident package
  • Project management package
  • Data communication package
  • Electronic mail package
  • None of the above
Q.28

A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as

  • Gateways
  • mail gateway
  • bridges
  • User Agent
  • None of the above
Q.29

Which of the following layer protocols are responsible for user and the application programme support such as passwords, resource sharing, file transfer and network management?

  • Layer 7 protocols
  • Layer 6 protocols
  • Layer 5 protocols
  • Layer 4 protocols
  • None of the above
Q.30

What are the data transmission channels available for carrying data from one location to another?

  • Narrowband
  • Voiceband
  • Broadband
  • All of the above
  • None of the above
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