Lesson 7B – Data Communications – Multiple Choice Questions(MCQ) IT Theory is part of SAS PC3 Syllabus.In this post, we have provided all important MCQs that are likely to come in the upcoming SAS exam. All the Best !!!
Lesson 7B – Data Communications – Multiple Choice Questions
- You should consider ——- When purchasing a modem.
a. Transmission speed and data length
b. Error correction and transmission speed
C. Fastest error correction method
d. Bus speed of PC - the abbreviation bps stands for—–
a bytes per second
b. bits per second
c. bandwidth per second
d. beludrate per second - A(n) ———-enables a modem to determine whether data has been corrupted and to request that it be
retransmitted
a. TCP protocol
b. File transfer protocol
C. Internet protocol
d. Error-protection protocol - —–service offers a total of 44.736 Mbps of bandwidth
a. ATM
b. T1
c. T2
d. T3 - In a cable network, the —– is where the cable TV network connects to the Internet
a. Head end
b. Switching station
C. Cable modem
d. RJ45 jack - If you want to connect to a remote network or the Internet using a modem, you need to connect the modem to
a. Analog telephone line
b. Digital telephone line
c. Teleconferencing line
d. ATM line - The expression Mbps stands for ——
a. Ten thousand bits per second
b. Megabits per second
c. Ggabits per second
d. Microbits per second - the basic rate ISDN service provides————
a one 256 Kbps data channel and one 64 Kbps error-checking channel
b. two 64 Kbps data channels and one 19 Kbps error.checking channel
C. 13 communication channels
d. Two 13 communication channels - —-possible through a network or telephone lines
a. Cellular data transfer
b. Internet access and file transfer
C. Analog file updating
d. Digital signaling - A modem converts the computer’s digital data into analog signals in the —-phase of its operation
a. Modularization
b. Modulification
C. Modulation
d. Modularization - A compute’s signal is digital; it consists of on/off pulses representing—–
a. Yes and no
b. True and false
c. 1s and Os
d. 10s and 100s - Data communications usually take place over media that are specifically set up for the network and are
know as ——–media.
a. Committed
b. Devoted
C. Constant
d. Dedicated - An ——- is a circuit board which can be plugged into one of the computer’s expansion slots,
a. Internal modem
b. External modem
c. Hub
d. Bridge - if file is sent from your computer to another person’s computer, you are ———the file.
a. Downloading
b. Sharing
C. Uploading
d. Transferring - Digital —————— line is a very popular telephone service, especially with home users.
a. Subscriber
b. Network
Connected
d. Modem