Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1821: To fully define the path a packet must take, what additional information is needed besides IP addresses?
- A: Gateway IPs
- B: Link layer addresses
- C: Port numbers
- D: All of the above
View Answer
D
Q1822: Why can't IP addresses alone determine the packet's path?
- A: They are encrypted
- B: They lack physical path info
- C: They are too long
- D: They are unique globally
View Answer
B
Q1823: Fill in the blank: ______ are used to identify devices on different networks.
- A: MAC addresses
- B: Subnet masks
- C: IP addresses
- D: DNS records
View Answer
C
Q1824: Which layer uses IP addresses for communication?
- A: Application layer
- B: Network layer
- C: Session layer
- D: Data-link layer
View Answer
B
Q1825: What do source and destination IP addresses represent?
- A: Intermediate nodes
- B: Entry and exit routers
- C: The ends of the communication
- D: The encryption keys
View Answer
C
Q1826: Which layer uses IP addresses as identifiers?
- A: Application layer
- B: Transport layer
- C: Network layer
- D: Data-link layer
View Answer
C
Q1827: IP addresses are assigned to ______.
- A: Applications
- B: Switches
- C: Network interfaces
- D: Ports
View Answer
C
Q1828: Fill in the blank: In the Internet, routing decisions depend on ______, not only IP addresses.
- A: Protocols
- B: Links
- C: IP headers
- D: Routing tables
View Answer
D
Q1829: Which of the following is not sufficient to route a packet across networks?
- A: IP address
- B: Link state
- C: Forwarding table
- D: Routing algorithm
View Answer
A
Q1830: What role do IP addresses play in packet transmission?
- A: Determine link type
- B: Define source and destination
- C: Encrypt data
- D: Measure delay
View Answer
B