Question 1 of 25
Hints left: 3
Q1
A data communications system has:
Q2
Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string?
Q3
00 represents a pixel that pixel is known as :
Q5
What are the most commonly used transmission speeds in BPS used in data communication?
Q6
Select the cable that uses copper conductor, accept and transport signals in the form of electric current?
Q7
Switching at the network layer in the Internet uses the datagram approach to:
Q9
Frames from one LAN can be transmitted to another LAN via the device
Q10
Which network is a cross between circuits switched network and a data-gram network?
Q11
A station in a network forwards incoming packets by placing them on its shortest output queue. What routing algorithm is being used?
Q12
Number of Unguided Media is:
Q13
If one link fails, only that link is affected. All other links remain active. Which topology does this?
Q14
Select correct type of line configuration:
Q15
You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?
Q16
What is the default subnet mask for a class C network?
Q17
Select the wrong data communication system component:
Q18
Which is also known as a connectionless protocol for a packet-switching network that uses the Datagram approach?
Q19
Which of the followings is used in communications is referred to as unshielded twisted-pair (UTP)?
Q20
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
Q21
Which of the following condition is used to transmit two packets over a medium at the same time?
Q22
Select the correct cable that transport signals in the form of light:
Q23
Twisted pair wires, coaxial cable, optical fiber cables are the examples of:
Q24
How many digits of the DNIC (Data Network Identification Code) identify the country?
Q25
Time required for a message to travel from one device to another is known as: