Top Tips Of Improve 4A0-100 Exam Question

NEW QUESTION 1
Which organization eventually became the standards body for IP and related protocols?

• A. IEEE
• B. IETF
• C. NSFNET
• D. ITU-T
• E. APNIC

Answer: B

NEW QUESTION 2
In regards to the Alcatel-Lucent 7750 SR-12 router, how many of the front access card slots are dedicated for Control Processors?

• A. 1
• B. 2
• C. 7
• D. 10

Answer: B

NEW QUESTION 3
Which field in the Routing Information Base (RIB) determines the direction frames will egress the node?

• A. Preference
• B. Metric
• C. Dest prefix
• D. Next-hop
• E. Cost

Answer: D

NEW QUESTION 4
Which of the following is a File command in the File System context of the Command Line Interface (CLI)?

• A. time-display
• B. help
• C. type
• D. terminal

Answer: C

NEW QUESTION 5
In the diagram, R3 receives an LSA with the sequence number 111 from R7 and then receives another copy of the LSA with a sequence number 112 from R1. What does R3 do with the LSA from R1?

• A. R3 discards the LSA received from R1 and sends a copy of the LSA from its link state base to R1.
• B. R3 installs the LSA received from R1 in its link state database and floods a copy to its neighbor
• C. R3 discards the LSA received from R1 and sends an ACK to R1.
• D. R3 installs the LSA received from R1 in its link state database, sends an ACK to R1 andfloods a copy to its neighbor

Answer: D

NEW QUESTION 6
What must occur before two hosts can exchange data using TCP?

• A. Nothin
• B. The two hosts can send data to each other at any tim
• C. The two hosts must negotiate a path MTU to be used for the data exchang
• D. The two hosts must perform a 3-way handshake before transmitting dat
• E. The two hosts must exchange encryption keys before transmitting dat

Answer: C

NEW QUESTION 7
Which of the following is a characteristic of a subnet created with a /31 prefix?

• A. There is no broadcast address on the networ
• B. The address can only be used as a loopback addres
• C. This specifies a single host addres
• D. A /31 prefix is not supported on the SR and ESS platfor

Answer: A

NEW QUESTION 8
Which three of the following are important considerations when designing subnets? (Choose three.)

• A. Number of subnetworks currently require
• B. Type of physical connectivity used by each segmen
• C. Future network growth requirement
• D. Number of hosts each subnetwork will suppor
• E. Class of the network address to be used for the networ

Answer: ACD

NEW QUESTION 9
Which of the following mediums can be used in a VPWS when defining SAPs (Select three)?

• A. Etherne
• B. AT
• C. Frame Rela
• D. Token Rin

Answer: ABC

NEW QUESTION 10
The 201.148.26.0/24 network is subnetted using a /26 mask. How many subnets and host addresses will be obtained with this mask?

• A. 4 subnets, 64 hosts
• B. 64 subnets, 4 hosts
• C. 4 subnets, 62 hosts
• D. 64 subnets, 2 hosts
• E. 6 subnets, 30 hosts

Answer: C

NEW QUESTION 11
When a device in an IP network receives an echo request message that is destined for itself, it then:

• A. Estimates the round trip-tim
• B. Generates an echo repl
• C. Calculates the data loss statistic
• D. Verifies the data field of the messag

Answer: B

NEW QUESTION 12
Which of the following statements is TRUE about ICMP?

• A. An IP datagram is encapsulated within an ICMP heade
• B. ICMP messages can only be generated by router
• C. ICMP messages are encapsulated within an IP datagra
• D. ICMP guarantees delivery of a messag

Answer: C

NEW QUESTION 13
Which of the following is true of Ethernet half-duplex transmission?

• A. Half-duplex transmission is less efficient because the frame MTU is smalle
• B. Half-duplex transmission is only 30-40% efficient because of collision
• C. Ethernet switches support half-duplex transmission onl
• D. All of the abov

Answer: B

NEW QUESTION 14
What is the basic unit of framing in SDH and the bit rate for its transmission?

• A. STM-1 with a bit rate of 1.544 Mbit/s
• B. STM-1 with a bit rate of 2.048 Mbit/s
• C. STM-1 with a bit rate of 51.84 Mbit/s
• D. STM-1 with a bit rate of 155.52 Mbit/s

Answer: D

NEW QUESTION 15
The sequence numbers are used by TCP to ensure that the data receive is provided to the application in the correct order.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 16
Which of the following is a characteristic of ATM?

• A. Application data is transported in 53-byte cell
• B. ATM circuits are identified by a VPI/VCI valu
• C. Provides enhanced QoS support with 5 classes of servic
• D. Ideal for multiple services on the same physical lin
• E. All of the abov
• F. None of the above

Answer: E

NEW QUESTION 17
What protocol is used by ping to verify IP network reachability?

• A. DCHP
• B. ICMP
• C. ARP
• D. NAT

Answer: B

NEW QUESTION 18
Which of the following is NOT a function of TCP?

• A. Maintaining the ordering of data transmitted across the networ
• B. Ensuring the reliable transmission of data across the networ
• C. Providing the receiver with a flow control mechanis
• D. Defining the method for routing data across the networ

Answer: D

NEW QUESTION 19
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

NEW QUESTION 20
What is NOT a function ofthe IOM?

• A. It forwards the data to the switch fabri
• B. It discards excess data packet
• C. It converts the incoming data to an internal forma
• D. It performs Quality of Service operations and buffers incoming dat

Answer: C

NEW QUESTION 21
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