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Q41. Which statement accurately explains the purpose of the TCP protocol and what it provides?
A. The primary purpose of TCP is to provide reliable communications between application services.
B. The primary purpose of TCP is to provide unreliable communications between application services
C. The primary purpose of TCP is to provide IP routing between application services.
D. The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTML.
Answer: A
Q42. Based on the network diagram (click the Exhibit Button),
what is the next-hop used on R1 to setup a static route to the network on CR1?
A. next-hop 10.2.3.2
B. next-hop 192.168.2.1
C. next-hop 10.2 3.1
D. next-hop 192.168.2.0
Answer: C
Q43. What is the meaning of carrier sense in the CSMA/CD algorithm?
A. The host will retransmit the frame if it detects a collision during transmission.
B. The host is able to detect the transmission speed of the Ethernet switch port to which the host is connected.
C. The host will only transmit data when it detects that no other devices are transmitting.
D. The host will only transmit upon a timer expiry.
E. The host will only transmit when it receives the token.
Answer: C
Q44. Which transport protocol and port number is used by BGP to establish and maintain a peering session with other BGP speakers?
A. TCP port 179.
B. UDP port 179.
C. TCP port 22.
D. UDP port 22.
Answer: A
Q45. Which of the following information can be seen within the FILE context of the SR 7x50? (Choose 2)
A. File sizes
B. Port statistics
C. Log-id 100 files
D. TiMOS image files
Answer: A,D
Up to the immediate present 4A0-100 brain dumps:
Q46. Which of the following applications would be likely to use UDP?
A. Real-time audio application, such as VoIP
B. Web browser
C. Email application
D. Telnet
Answer: A
Q47. Which of the following statements is TRUE about ICMP?
A. An IP datagram is encapsulated within an ICMP header.
B. ICMP messages can only be generated by routers.
C. ICMP messages are encapsulated within an IP datagram.
D. ICMP guarantees delivery of a message.
Answer: C
Q48. What is the main purpose of IP fragmentation?
A. To limit the number of the IP addresses in the network.
B. To improve the efficiency of transmissions over the network.
C. To reduce the number of resources required to send a large frame over the network.
D. To allow IP datagrams to be carried over Layer 2 networks with varying MTU sizes.
Answer: D
Q49. Given the Mac Address 00-20-60-ce-2b:28, which part is the Organizationally Unique Identifier (OUI)?
A. 2b:28
B. 00-20
C. ce-2b:28
D. 00-20-60
Answer: D
Q50. Which of the following statements is FALSE when describing a Virtual Private LAN Service?
A. A VPLS emulates a virtual switch or bridge.
B. The VPLS performs MAC learning on MAC addresses seen from SAPs and SDPs.
C. When a VPLS receives a frame with an unknown MAC destination, the frame will be dropped.
D. MAC addresses are maintained in a MAC address forwarding database (FDB).
Answer: C