4A0-100 Exam Questions

Which of the following IP header fields contains information that indicates whether routers are allowed to fragment a packet?

What is the main purpose of IP fragmentation?

Which of the following is a characteristic of Port Address Translation?

Which of the following describes an IP filter on the Alcatel-Lucent 7750 SR?

Which of the following command lines would be found in a list of commands designed to permit only certain type of traffic from exiting router RTR-A to router RTR-B?

What is the sequence of messages sent by a host when it attempts to ping a destination for which it has no Address Resolution Protocol (ARP) cache entry?

Which of the following best describes the function of an ARP cache within the same subnet?

What is the sequence of events for a client to receive an IP address from the server in the DHCP?

Which of the following statements is TRUE about ICMP?

What protocol is used by ping to verify IP network reachability?

When a device in an IP network receives an echo request message that is destined for itself, it then:

What ICMP message type will a router use to indicate to a host that an IP datagram sourced from that host cannot be delivered?

A set of tasks that move a packet from its entry into an IP network to itsexit from the IP network. Thisdescribes:

Which field in the IP routing table contains the name or address of the neighbour that advertised the prefix to the router?

What is the function of the Routing Table Manager?

Which of the following is characteristic of a static route?

Which of the following describes a static default route?

Based on the network diagram (click on the exhibit), what is the command to use on R1 to setup a static route to the network on CR1

Based on the network diagram, (click on exhibit) what is the command to use on CR1 to setup a default static route to R1?

Based on the network diagram (click on exhibit), R2 wants to connect to the networks behind CR1 using a static-route. What is the correct syntax given the choices below? R1 has a v...

Based on the network diagram (click on exhibit), Router 1 installs the network D in its routing table, based on a dynamic routing update from Router 2. Which of the following descr...

What are the tasks of the Routing Table Manager (RTM)? Choose two

What are some of the characteristics of BGP? Choose three

Which is the public AS in the diagram?

In the diagram, what type of BGP session is established between the routers of AS 2002?

In the diagram, what type of BGP session is established between the routers of AS 65001 and AS 2002?

Which of the following statements describes the purpose of the Transport Layer in the TCP/IP stack?

Which of the following is NOT a function of TCP?

What must occur before two hosts can exchange data using TCP?

Host A is transmitting data to host B on a TCP connection. What is the purpose of the ACK sent by host B?

Host A receives a TCP SYN/ACK segment. What does this signify?

What is the purpose of the source and destination ports in the TCP header?

Which of the following is NOT a field in a TCP header?

Which of the following fields is not a field in the TCP header used for the establishment and termination of a TCP connection?

The sequence numbers are used by TCP to ensure that the data receive is provided to the application in the correct order.

What happens in a TCP session if a segment is not acknowledged within a certain time period?

What is the purpose of TCP flow control?

Which field in the TCP header is used by the receiver to indicate how many segments it can receive?

What must the sender do when it receives a window size of 0 from the receiver?

Which of the following statements BEST describes the purpose of UDP (Select two)?

Why does UDP have less overhead than TCP?

Which application below would be likely to use UDP?

How does the Transport Layer identify which application is to receive the data?

What capability of TCP/IP allows two hosts to have multiple TCP sessions to each other simultaneously?

What operation is performed by an LSR when it receives an MPLS labeled packet?

What is the function of an LSR?

In an MPLS network, which device is responsible for taking an unlabeled packet and encapsulating it with an MPLS label?

Which of the following are correct statements about MPLS labels (Choose three)?

Which device is responsible for removing the MPLS label before the packet reaches the CE device?

Which two protocols are used for the dynamic signaling of MPLS labels (Choose two)?