Practice Test: Question Set - 25
1. The research and development department at your office has been experimenting with different technologies to help improve the performance of the network. One group has been examining the use of a broadband network versus a based band network. Select the correct statement about broadband and baseband.
- (A) Broadband
networks carry several channels on a single cable, whereas in a baseband
network several cables carry one channel
- (B) Baseband
networks carry a single channel on a single cable, whereas broadband networks
carry several channels on a single cable
- (C) Baseband
refers to local area networks, and broadband refers to wide area networks
- (D) Baseband
operates at a standard bit rate, whereas broadband may operate at different
rates as needed
2. ARP (Address Resolution Protocol) is
- (A) A TCP/IP
protocol used to dynamically bind a high level IP Address to a low-level
physical hardware address
- (B) A
TCP/IP high level protocol for transferring files from one machine to another
- (C) A
protocol used to monitor computers
- (D) A
protocol that handles error and control messages
3. Bus is
- (A) One
or more conductors that some as a common connection for a related group of
devices
- (B) A
continuous frequency capable of being modulated or impressed with a second
signal
- (C) The
condition when two or more stations attempt to use the same channel at the same
time
- (D) A
collection of interconnected functional units that provides a data
communications service among stations attached to the network
4. What is the name of the software package that allows people to send electronic mail along a network of computers and workstations?
- (A) Memory
resident package
- (B) Project
management package
- (C) Data
communication package
- (D) Electronic
mail package
5. A communication network which is used by large organizations over regional, national or global area is called
- (A) LAN
- (B) WAN
- (C) MAN
- (D) Intranet
6. Videotex is a combination of
- (A) Television
- (B) Communication
- (C) Computer
technology
- (D) All
of the above
7. A 8-Mbps token ring has a token holding timer value of 10 msec. What is the longest frame (assume header bits are negligible) that can be sent on this ring?
- (A) 8000 B frame
- (B) 80,000 B
frame
- (C) 8 ×
105 bit frame
- (D) 10,000 B
frame
8. A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent?
- (A) 32 kbps
- (B) 8 kbps
- (C) 128 kbps
- (D) 64 kbps
9. If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _______.
- (A) Even
- (B) Odd
- (C) Indeterminate
- (D) 42
10. FDDI is a
- (A) Ring
network
- (B) Star
network
- (C) Mesh
network
- (D) Bus
based network
11. A global network of millions of business, government, educational, and research networks; computer systems; database; and end users. Select the best fit for answer:
- (A) Internet
works
- (B) The
Internet
- (C) Internet
revolution
- (D) Internet
technologies
12. Error detecting code 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 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
- (D) The
ratio of the data units in error to the total number of data units
13. You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 25 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
14. An information utility can offer a user
- (A) Instant
bonds and stock quotations
- (B) News stories
from wire services
- (C) Complete
airline schedules for all domestic flights
- (D) All of the
above
15. The communication mode that supports data in both directions at the same time is
- (A) Simplex
- (B) Half-duplex
- (C) Full-duplex
- (D) Multiplex
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