1) When does the fixed path get established between the source and destination in the virtual packet switching network?
a. Before the transmission of packets
b. After the transmission of packets
c. During the transmission of packets
d. All of the above
|
2) Which among the following represents the objectives/requirements of Data Link Layer?
a. Frame Synchronization
b. Error & Flow Control
c. Both a & b
d. None of the above
|
3) When does the station B send a positive acknowledgement (ACK) to station A in Stop and Wait protocol?
a. Only when no error occurs at the transmission level
b. When retransmission of old packet in a novel frame is necessary
c. Only when station B receives frame with errors
d. All of the above
|
Answer
Explanation
Related Ques
|
ANSWER: Only when no error occurs at the transmission level
Explanation:
No explanation is available for this question!
|
|
4) Which provision can resolve/overcome the shortcomings associated with duplication or failure condition of Stop and Wait Automatic Repeat Request protocol especially due to loss of data frames or non-reception of acknowledgement?
a. Provision of sequence number in the header of message
b. Provision of checksum computation
c. Both a & b
d. None of the above
|
Answer
Explanation
Related Ques
|
ANSWER: Provision of sequence number in the header of message
Explanation:
No explanation is available for this question!
|
|
5) Which consequences are more likely to occur during the frame transmission in Stop-and-Wait ARQ mechanism?
a. Loss of frame or an acknowledgement
b. Delay in an acknowledgement
c. Normal operation
d. All of the above
|
6) Which feature of Go-Back-N ARQ mechanism possesses an ability to assign the sliding window in the forward direction?
a. Control Variables
b. Sender Sliding Window
c. Receiver Sliding Window
d. Resending of frames
|
7) Which ARQ mechanism deals with the transmission of only damaged or lost frames despite the other multiple frames by increasing the efficiency & its utility in noisy channels?
a. Go-Back-N ARQ
b. Selective Repeat ARQ
c. Stop-and-Wait ARQ
d. All of the above
|
8) What are the frames issued by the secondary station of HDLC, known as?
a. Link
b. Command
c. Response
d. None of the above
|
9) Which operational mode/s of HDLC support/s the balanced configuration by governing point-to-point link connectivity in addition to the primary as well as secondary functions performed by the station?
a. NRM
b. ABM
c. Both a & b
d. None of the above
|
10) Which category of HDLC frames undergoes error and flow control mechanisms by comprising send and receive sequence numbers?
a. U-frames
b. I-frames
c. S-frames
d. All of the above
|
11) Which type of S-frame in HDLC exhibit the correspondence of last three bits [N(R)] by defining the negative acknowledgement (NAK) number with the code value of '01'?
a. Receive ready
b. Receive not ready
c. Reject
d. Selective Reject
|
12) Which label hierarchy exhibits the zero value of S-bit except the last bit with value equal to unity?
a. Label Push
b. Label Pop
c. Label Stack
d. LSP hierarchy
|
13) Which scheme/ strategy is suitable to establish the communication between the access point (AP) and the infrastructure of LANs?
a. Wired
b. Wireless
c. Both a & b
d. None of the above
|
14) What conclusion can be drawn if the collision is detected in CSMA/CD algorithm while controlling the access in wireless LANs?
a. Non-reception of frame & necessity of retransmission
b. No necessity of working in duplex mode for the host
c. No necessity to prevent the signal fading
d. All of the above
|
Answer
Explanation
Related Ques
|
ANSWER: Non-reception of frame & necessity of retransmission
Explanation:
No explanation is available for this question!
|
|
15) Which among the following represents the building blocks of wireless LANs?
a. BSS
b. ESS
c. Both a & b
d. None of the above
|
16) Which method of multiple secondary communication in TDMA is acquired/adopted by bluetooth especially where data integrity becomes more crucial than avoiding latency?
a. Synchronous Connection-Oriented (SCO) Link
b. Asynchronous Connectionless Link (ACL)
c. Both a & b
d. None of the above
|
17) Which protocol performs the functional operation of breaking the frames into several cells in an Asynchronous Transfer Mode (ATM)?
a. Physical Layer
b. ATM Layer
c. ATM Adaptation Layer
d. All of the above
|
18) Which among the below illustrations represents the variable bit rate type of ATM?
a. Telephony speech without silencer
b. Compressed voice/ video with silence suppression
c. Equivalent sharing of bandwidth between the links
d. All of the above
|
Answer
Explanation
Related Ques
|
ANSWER: Compressed voice/ video with silence suppression
Explanation:
No explanation is available for this question!
|
|
19) What is/are the functions of Segmentation and Reassembly (SAR) sublayer in an ATM adaptation layer?
a. Provision of an interface to the application
b. Addition of headers and trailers to data units for cell payload formation
c. Smoothening of an incoming traffic
d. Detection of lost and misinserted cells
a. A, B & C
b. B, C & D
c. Only B
d. Only C
|
20) Which among the AAL protocol/s allow/s the CS checksum of about 32 bits?
a. AAL-1
b. AAL-2
c. AAL-3/4
d. AAL-5
a. A & B
b. C & D
c. Only C
d. Only D
|
21) Match the MPLS routers with associated functions:
a. Edge LSR --------------------- 1) Reception of traffic from non-MPLS router
b. Ingress LSR ------------------ 2) Interfacing to a traditional router
c. Engress LSR ----------------- 3) Sending the traffic to non-MPLS router
a. A- 1, B- 2, C- 3
b. A- 1, B -3, C- 2
c. A- 2, B -1, C- 3
d. A- 3, B -2, C- 1
|
22) Which functionality of the network layer deals with the necessity of a three-way handshake usually before the transmission of data from sender to receiver?
a. Path determination
b. Forwarding
c. Call Set-up
d. All of the above
|
23) A packet used for the transmission purpose is basically a combination of _____
a. group of bits
b. source & destination addresses
c. Both a & b
d. None of the above
|
24) Which unit plays a crucial role in carrying out the functions of network layer, simply by the addition of a header to it?
a. Network Service Data Unit (NSDU)
b. Medium Access Control Unit (MACU)
c. Network Address Translation Unit (NATU)
d. None of the above
|
25) Match the classes of IP addresses with their functional applications
a. Class A -------------------- 1) Multicast services
b. Class B -------------------- 2) Reserved for future use
c. Class D -------------------- 3) Large Organizations
d. Class E -------------------- 4) Midsize Organizations
a. A- 4, B- 3, C- 2, D- 1
b. A- 2, B- 4, C- 1, D- 3
c. A- 3, B- 4, C- 1, D- 2
d. A- 1, B- 2, C- 3, D- 4
|
26) Which form of byte assigning strategy is adopted in class B type of network corresponding to IP addresses?
a. Network.Node.Node.Node
b. Network.Network.Node.Node
c. Network.Network.Network.Node
d. Network.Node.Node.Node
|
27) On which factors do the size of block depends in classless addressing?
a. Nature & size of an entity
b. Number of addresses
c. Availability of the address space
d. All of the above
|
28) What are the problems involved in an IP Fragmentation Process?
a. Loss of any fragment results in rejection of all datagrams
b. Management of buffer space is essential to handle reassembly process
c. No necessity of initializing the timer after the reception of initial fragment
d. Multiple attempts can be made to recover ICMP error message due to connection-oriented IP service
a. A & B
b. C & D
c. B & C
d. A & D
|
29) The ability of a single network to span multiple physical networks is known as ______
a. Subnetting
b. Masking
c. Fragmenting
d. Hopping
|
30) Which field/s of ICMPv6 packet header has/have a provision of minimal integrity level concerning to verification for ICMP messages?
a. Type
b. Code
c. Checksum
d. All of the above
|
31) Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering?
a. Source Route Failed
b. Communication Administratively Prohibited
c. Host Precedence Violation
d. Precedence Cut-off in Effect
|
32) Which among the following are delivered by the transport layer in process-to-process delivery mechanism?
a. Frames
b. Datagrams
c. Packets
d. All of the above
|
33) Which among the following are uncontrolled and un-registered form of ephemeral ports in accordance to IANA?
a. Well known Ports
b. Registered Ports
c. Dynamic Ports
d. All of the above
|
34) What is the purpose of using source & destination port numbers respectively in the addressing method of transport layer?
a. For Delivery & Reply operations
b. For Reply & Delivery operations
c. Only for Delivery operations
d. Only for Reply operations
|
35) Which among the several transport services deals with the addresses, protocol utility class in addition to performance evaluating features of a connection?
a. Connection Management
b. Quality of Service
c. User Interface
d. Status Reporting
|
36) Which mechanism/s is/are extremely essential in data link and transport layers in accordance to operational services offered by the transport protocols?
a. Buffering
b. Flow Control
c. Both a & b
d. None of the above
|
37) Which among the below specified design issues should not be minimized while designing the system of a computer network?
a. Bandwidth
b. Content Switching
c. Software Overhead
d. All of the above
|
38) Which TCP timer signifies its contribution in measuring the time of connection maintenance in TIME_WAIT state?
a. Keep alive Timer
b. Persist Timer
c. Retransmission Timer
d. 2 Maximum Segment lifetime Timer
|
39) Which among the following specifies the impossibility of updating RTT estimator during the arrival acknowledgement of retransmitted data especially at the occurrence of timeout and retransmission phases in TCP?
a. NAGLE algorithm
b. Karn's algorithm
c. Clark's Solution
d. All of the above
|
40) Which mechanism in transport layer supplies multiple network connections along with the distribution of traffic over them in a round-robin basis/ fashion?
a. Upward Multiplexing
b. Downward Multiplexing
c. Buffering & Flow Control
d. Crash Recovery
|
