Computer Networks [GATE (Graduate Aptitude Test in Engineering) Computer Science & IT (CS)]: Questions 28 - 31 of 347
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Question 28
Question MCQ▾
The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.333 | |
b. | 0.999 | |
c. | 0.009 | |
d. | All of the above |
Question 29
Question MCQ▾
Which layer functions as liaison between user support layers and network support layers?
Choices
Choice (4) | Response | |
---|---|---|
a. | physical layer | |
b. | transport layer | |
c. | data link layer | |
d. | network layer |
Question 30
Question MCQ▾
Which command will configure a switch port to use the IEEE standard method of inserting VLAN membership information into Ethernet frames?
Choices
Choice (4) | Response | |
---|---|---|
a. | Switch (config) # switch port trunk encapsulation isl | |
b. | Switch (config) # switch port trunk encapsulation dot 1q | |
c. | Switch (config-if) # switch port trunk encapsulation dot 1q | |
d. | Switch (config) # switch port trunk encapsulation ietf |
Question 31
Question MCQ▾
Networking such as LAN, MAN started from:
Choices
Choice (4) | Response | |
---|---|---|
a. | fourth generation | |
b. | third genration | |
c. | first genration | |
d. | second genration |