Practice Test: Question Set - 06
1. The simultaneous transmission of data to a number of stations is known as
- (A) Broadcast
- (B) Band width
- (C) Aloha
- (D) Analog
transmission
2. Which file transfer protocol uses UDP?
- (A) NFS
- (B) TELNET
- (C) TFTP
- (D) FTP
3. Which of the following characteristic(s) is/are suited to the PSS applications?
- (A) Bursty
traffic and low communications intensity
- (B) Widely
dispersed terminals and access to international packets switched services
- (C) Multiple
remote host or applications accessed by a single local access circuit terminal
and circuit
- (D) All of the
above
4. Different computers are connected to a LAN by a cable and a/an
- (A) Modem
- (B) Interface
card
- (C) Special
wires
- (D) Telephone
lines
5. A batch processing terminal would not include a
- (A) CPU
- (B) Card reader
- (C) Card punch
- (D) Line printer
6. The encoding method specified in the EIA-232 standard is _______.
- (A) NRZ-I
- (B) NRZ-L
- (C) Manchester
- (D) Differential
Manchester
7. In OSI model, which of the following layer transforms information from machine format into that understandable by user?
- (A) Application
- (B) Presentation
- (C) Session
- (D) Physical
8. Which of the following data transmission media has the largest terrestrial range without the use of repeaters or other devices?
- (A) Hardwiring
- (B) Microwave
- (C) Satellite
- (D) Laser
9. You are working with a network that has the network ID 192.168.10.0 and require nine subsets for your company and the maximum number of hosts. What subnet mask should you use?
- (A) 255.255.255.192
- (B) 255.255.255.224
- (C) 255.255.255.240
- (D) 255.255.255.248
10. How much power (roughly) a light-emitting diode can couple into an optical fiber?
- (A) 100
microwatts
- (B) 440
microwatts
- (C) 100
picowatts
- (D) 10
milliwatts
11. To avoid transmission errors, a check figure is calculated by the
- (A) Transmitting
computer
- (B) Receiving
computer
- (C) Both (a) and
(b)
- (D) Start and
stop bit
12. Which of the following is an advantage to using fiber optics data transmission?
- (A) Resistance
to data theft
- (B) Fast data
transmission rate
- (C) Low noise
level
- (D) All of the
above
13. Which of the following files is used for NetBIOS name resolution?
- (A) HOSTS
- (B) LMHOSTS
- (C) ARP
- (D) FQDN
14. Which of the following items is not used in Local Area Networks (LANs)?
- (A) Computer
- (B) Modem
- (C) Printer
- (D) Cable
15. Which of the following divides the high speed signal into frequency bands?
- (A) t-switch
- (B) Modem
- (C) Frequency-division
multiplexer
- (D) Time-division
multiplexer
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