Q.1

If odd parity is used for ASCII error detection, the number ofper eight-bit symbol is _____.

  • even
  • odd
  • indeterminate
  • 42
Q.2

An error-detecting code inserted as a field in a block of data to be transmitted is known as

  • Frame check sequence
  • Error detecting code
  • Checksum
  • flow control
Q.3

What is the standard protocol for network management features?

  • SNA
  • FTP
  • SNMP
  • SMS
Q.4

The application layer of a network

  • establishes, maintains, and terminates virtual circuits
  • defines the user's port into the network
  • consists of software being run on the computer connected to the network
  • All of the above
  • None of the above
Q.5

Which of the following signals is not standard RS - 232-C signal?

  • VDR
  • RTS
  • CTS
  • DSR
  • None of the above
Q.6

What is the default subnet mask for a class B network?

  • 127.0.01
  • 255.0.0.0
  • 255.255.0.0
  • 255.255.255.0
  • None of the above
Q.7

A characteristic of a multiprogramming system is:

  • simultaneous execution of program instructions from two applications
  • concurrent processing of two or more programs
  • multiple CPUs
  • All the above
  • None of the above
Q.8

Which of the following statement is correct?

  • Teleprinters are used for printing at remote locations, not for input.
  • Teleprinters are same as teletypes
  • Teleprinters are same as x400
  • Teleprinters have a printer for output and keyboard for input
  • None of the above
Q.9

A computer that handles resource sharing and network management in a local area network. Select the best fit for answer:

  • Network Server
  • Virtual Private Network
  • Network operating system
  • OSI
Q.10

Repeaters are often used on an 802.3 network to help strengthen the signals being transmitted. As with the length of segments and the number of segments, a limit exists as to how many repeaters can be used between any two nodes. What is the maximum number of repeaters that can be used?

  • Five
  • Two
  • Four
  • Six
  • Three
Q.11

A 4 KHz noise less channel with one sample everper sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent?

  • 32 Kbps
  • 64 Kbps
  • 8 Kbps
  • 128 Kbps.
Q.12

X.is

  • a method of determining which device has access to the transmission medium at any time
  • a method access control technique for multiple-access transmission media
  • a very common bit-oriented data link protocol issued by ISO
  • network access standard for connecting stations to a circuit-switched network
  • None of the above
Q.13

In a synchronous modem, the digital-to-analog converter transmits signal to the

  • equalizer
  • modulator
  • demodulator
  • terminal
  • None of the above
Q.14

Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer:

  • Bandwidth alternatives
  • Switching alternating
  • Inter organizational networks
  • Extranets
Q.15

Which of the following digits are known as the sub-address digits (for use by the user) of the Network User Address (NUA)?

  • 5-7
  • 1-4
  • 8-12
  • 13-14
  • None of the above
Q.16

Error detecting code is

  • an error-detecting code based on a summation operation performed on the bits to be checked
  • a check bit appended to an array of binary digits to make the sum of all the binary digits.
  • a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the error is detected.
  • the ratio of the data units in error to the total number of data units
  • None of the above
Q.17

The coming together of three technologies i.e. microelectronics, computing and communications has ushered in

  • information explosion
  • information technology
  • business revolution
  • educational upgradation
  • None of the above
Q.18

In OSI model, which of the following layer transforms information from machine format into that understandable by user

  • application
  • presentation
  • session
  • physical
  • None of the above
Q.19

Which multiplexing technique shifts each signal to a different carrier frequency?

  • FDM
  • synchronous TDM
  • asynchronous TDM
  • All of the above
Q.20

Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries?

  • physical layer
  • data link layer
  • transport layer
  • network layer
  • None of the above
Q.21

Which of the following might be used by a company to satisfy its growing communications needs?

  • front-end processor
  • multiplexer
  • controller
  • concentrator
  • All of the above
Q.22

You are in the process of analyzing a problem that requires you to collect and store TCP/IP Packets. Which of the following utilities is best suited for this purpose?

  • NBTSTAT
  • Performance Monitor
  • NETSTAT
  • Network Monitor
  • DHCP Management Console
Q.23

Brad is in charge of a small network and wants to make it simple but secure. The users want to have full control over their data and still be able to share data with the rest of the office. The networking knowledge of the office staff is excellent. Which network(s) would be the best to set up?

  • Peer-to-peer
  • Master domain
  • Server-based
  • Ethernet
  • Share-level
Q.24

Which of the following files is used for NetBIOS name resolution?

  • HOSTS
  • LMHOSTS
  • ARP
  • FQDN
  • None of the above
Q.25

In CRC the quotient at the sender

  • becomes the dividend at the receiver
  • becomes the divisor at the receiver
  • is discarded
  • is the remainder
Q.26

When a host knows its physical address but not its IP address, it can use _____.

  • RARP
  • ARP
  • IGMP
  • ICMP
  • None of the above
Q.27

What doestranslate to in binary?

  • 11110000
  • 00011110
  • 00001111
  • 11100000
  • None of the above
Q.28

How much power (roughly) a light-emitting diode can couple into an optical fiber?

  • 100 microwatts
  • 440 microwatts
  • 100 picowatts
  • 10 milliwatts
  • None of the above
Q.29

If the client receives an address from a DHCP server, what is the only information available in the Network Properties dialog box?

  • The IP address
  • The subnet address
  • That the client is receiving its address from DHCP
  • The default gateway
  • None of the above
Q.30

Which of the following transmission systems provides the highest data rate to an individual device

  • Computer bus
  • Telephone lines
  • Voice band modem
  • leased lines
  • None of the above
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