CCNA1 V6.0 FINAL EXAM 350 UNIQUE
MULTIPLE CHOICE QUESTIONS WITH
DETAILED RATIONALES
Questions 150: Network Fundamentals & OSI Model
1. What is a characteristic of a fault tolerant network?
A. A network that protects confidential information from unauthorized access
B. A network that can expand quickly to support new users and applications
C. A network that supports a mechanism for managing congestion
D. A network that recovers quickly when a failure occurs and depends on
redundancy
Answer: D
Rationale: Fault tolerant networks limit the impact of a failure by being built
with redundant paths between source and destination, allowing for quick
recovery when failures occur. Scalability (B) refers to expanding without
impacting performance. QoS (C) manages congestion. Security (A) relates to
confidentiality.
2. Which term refers to a network that provides secure access to corporate
offices by suppliers, customers, and collaborators?
A. Internet
B. Intranet
,C. Extranet
D. Extendednet
Answer: C
Rationale: An extranet provides secure, safe access to suppliers, customers,
and collaborators. The Internet is worldwide public access. An intranet is
private internal access for organization members.
3. What is a benefit of using cloud computing in networking?
A. End users have freedom to use personal tools
B. Network capabilities are extended without requiring investment in new
infrastructure, personnel, or software
C. Technology is integrated into everyday appliances
D. Home networking uses existing electrical wiring
Answer: B
Rationale: Cloud computing extends IT capabilities without requiring
investment in new infrastructure, training new personnel, or licensing new
software. BYOD relates to (A). Smart home technology relates to (C).
Powerline networking relates to (D).
4. What is the function of the shell in an OS?
A. It manages hardware resources
B. It interfaces between the users and the kernel
C. It manages file systems
D. It controls network connectivity
,Answer: B
Rationale: The shell is the command interpreter that interfaces between users
and the kernel, allowing users to interact with the operating system.
5. Which connection provides a secure CLI session with encryption to a Cisco
switch?
A. Console connection
B. AUX connection
C. Telnet connection
D. SSH connection
Answer: D
Rationale: SSH (Secure Shell) provides encrypted secure CLI sessions. Telnet
transmits data in clear text. Console and AUX are physical connections.
6. What will a host on an Ethernet network do if it receives a frame with a
destination MAC address that does not match its own?
A. It will forward the frame to the next hop
B. It will process the frame
C. It will discard the frame
D. It will send a NACK
Answer: C
Rationale: Ethernet hosts examine the destination MAC address of each
received frame. If it doesn't match their own MAC address or a
broadcast/multicast address, they discard the frame.
, 7. Which two flags in the TCP header are used in a TCP threeway handshake?
(Choose two.)
A. ACK
B. FIN
C. PSH
D. SYN
E. URG
Answer: A, D
Rationale: The TCP threeway handshake uses SYN and ACK flags. The process:
SYN, SYNACK, ACK. FIN terminates connections. PSH pushes data. URG
indicates urgent data.
8. What happens if part of an FTP message is not delivered to the destination?
A. The message is lost because FTP does not use a reliable delivery method
B. The FTP source host sends a query to the destination host
C. The entire FTP message is resent
D. The part of the FTP message that was lost is resent
Answer: D
Rationale: FTP uses TCP as its transport protocol, which provides reliable
delivery. TCP will retransmit only the lost segments, not the entire message.
9. Which two characteristics are associated with UDP sessions? (Choose two.)
A. Destination devices receive traffic with minimal delay
B. Transmitted data segments are tracked
MULTIPLE CHOICE QUESTIONS WITH
DETAILED RATIONALES
Questions 150: Network Fundamentals & OSI Model
1. What is a characteristic of a fault tolerant network?
A. A network that protects confidential information from unauthorized access
B. A network that can expand quickly to support new users and applications
C. A network that supports a mechanism for managing congestion
D. A network that recovers quickly when a failure occurs and depends on
redundancy
Answer: D
Rationale: Fault tolerant networks limit the impact of a failure by being built
with redundant paths between source and destination, allowing for quick
recovery when failures occur. Scalability (B) refers to expanding without
impacting performance. QoS (C) manages congestion. Security (A) relates to
confidentiality.
2. Which term refers to a network that provides secure access to corporate
offices by suppliers, customers, and collaborators?
A. Internet
B. Intranet
,C. Extranet
D. Extendednet
Answer: C
Rationale: An extranet provides secure, safe access to suppliers, customers,
and collaborators. The Internet is worldwide public access. An intranet is
private internal access for organization members.
3. What is a benefit of using cloud computing in networking?
A. End users have freedom to use personal tools
B. Network capabilities are extended without requiring investment in new
infrastructure, personnel, or software
C. Technology is integrated into everyday appliances
D. Home networking uses existing electrical wiring
Answer: B
Rationale: Cloud computing extends IT capabilities without requiring
investment in new infrastructure, training new personnel, or licensing new
software. BYOD relates to (A). Smart home technology relates to (C).
Powerline networking relates to (D).
4. What is the function of the shell in an OS?
A. It manages hardware resources
B. It interfaces between the users and the kernel
C. It manages file systems
D. It controls network connectivity
,Answer: B
Rationale: The shell is the command interpreter that interfaces between users
and the kernel, allowing users to interact with the operating system.
5. Which connection provides a secure CLI session with encryption to a Cisco
switch?
A. Console connection
B. AUX connection
C. Telnet connection
D. SSH connection
Answer: D
Rationale: SSH (Secure Shell) provides encrypted secure CLI sessions. Telnet
transmits data in clear text. Console and AUX are physical connections.
6. What will a host on an Ethernet network do if it receives a frame with a
destination MAC address that does not match its own?
A. It will forward the frame to the next hop
B. It will process the frame
C. It will discard the frame
D. It will send a NACK
Answer: C
Rationale: Ethernet hosts examine the destination MAC address of each
received frame. If it doesn't match their own MAC address or a
broadcast/multicast address, they discard the frame.
, 7. Which two flags in the TCP header are used in a TCP threeway handshake?
(Choose two.)
A. ACK
B. FIN
C. PSH
D. SYN
E. URG
Answer: A, D
Rationale: The TCP threeway handshake uses SYN and ACK flags. The process:
SYN, SYNACK, ACK. FIN terminates connections. PSH pushes data. URG
indicates urgent data.
8. What happens if part of an FTP message is not delivered to the destination?
A. The message is lost because FTP does not use a reliable delivery method
B. The FTP source host sends a query to the destination host
C. The entire FTP message is resent
D. The part of the FTP message that was lost is resent
Answer: D
Rationale: FTP uses TCP as its transport protocol, which provides reliable
delivery. TCP will retransmit only the lost segments, not the entire message.
9. Which two characteristics are associated with UDP sessions? (Choose two.)
A. Destination devices receive traffic with minimal delay
B. Transmitted data segments are tracked
