Highest Quality 4A0-100 Exam Questions 2021
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Online 4A0-100 free questions and answers of New Version:
NEW QUESTION 1
The IANA is responsible for:
- A. Intra-city ISP traffic
- B. Allocationof the global IP address space
- C. Allocating IP addresses for residential customer traffic
- D. Allocating North American IP addresses
Answer: B
NEW QUESTION 2
Based on the network diagram (clickthe Exhibit Button).
R2 wants to connect a host on 192.168.2.0/24 behind CR1. What is the correct next-hop to use, assuming R1 is configured correctly?
- A. 10.2.3.2
- B. 10.1.1.1
- C. 10.2.3.1
- D. 10.1.1.2
Answer: B
NEW QUESTION 3
Which statement best describes an SDP?
- A. Service Delivery Points are defined on the service provider network side and used to bind the service to an MPLS transport tunne
- B. Many services can be bound to a single SD
- C. Service Delivery Points are defined on the service provider access side and used to bind the connection of the service to CE devic
- D. Many services can be bound to a single SD
- E. Service Delivery Points are defined on the service provider network side and used to bind the service to an MPLS transport tunne
- F. Only one service can be bound to a single SD
- G. Service Delivery Points are defined on the service provider access side and used to bind the service to CE devic
- H. Only one service can be bound to a single SD
Answer: A
NEW QUESTION 4
Who was responsible for developing and publishing the original standard that was used for 10 Mbit/s Ethernet?
- A. Intel Corporatio
- B. Digital Equipment Corporatio
- C. DEC-Intel-Xero
- D. Apple Compute
- E. IB
Answer: C
NEW QUESTION 5
Which of the following is a characteristic of Layer 2 framing?
- A. Provides a universal addressing scheme to uniquely identify destinations in the network
- B. Size of frame cannot exceed 1518 byte
- C. Provides error checking of the frame contents on ingres
- D. All of the abov
Answer: C
NEW QUESTION 6
What is the sequence of events for a client to receive an IP address from the server in the DHCP?
- A. Discover, offer, request, acknowledgemen
- B. Request, offer, discover, acknowledgemen
- C. Discover, request, offer, acknowledgemen
- D. Request, acknowledgement, discover, offe
Answer: A
NEW QUESTION 7
Which of the following describes the normal sequence of events in the forming of an OSPF adjacency?
- A. Hello exchange, DB descriptor exchange, Link state requests and update
- B. DB descriptor exchange, Link state requests and updates, Hello exchang
- C. Link state requests and updates, Hello exchange, DB descriptor exchang
- D. Hello exchange, Link state requests and updates, DB descriptor exchang
Answer: A
NEW QUESTION 8
What information is used to separate VLANs on a VLAN trunk that connects multiple VLANs?
- A. VLAN ta
- B. IP Heade
- C. FC
- D. Priority Valu
Answer: A
NEW QUESTION 9
As described by the CSMA/CD algorithm, what is the first thing to happen when Host A and Host B begin transmitting data at the same time?
- A. Host A and B will generate a jam signa
- B. Listening hosts will request retransmissio
- C. Host A or B will retry the transmissio
- D. A back-off timer is started by Host A or
Answer: A
NEW QUESTION 10
TCP is sending data in 5 segments with SEQ numbers 27000, 27500.28000, 28500, and 29000 respectively. During transmission, the segment with SEQ=28500 is dropped in the network. How does TCP handle this situation?
- A. The receiving end station sends an ACK flag with SEQ=28000 to indicate it has received a segment out of orde
- B. The receiving station sends a NACK frame with SEQ=28500 requesting that the frame be retransmitted
- C. Once the reciever's window is ful
- D. TCP assembles the payload and determines that SEQ=28500 is missin
- E. At this point, the reciever sends the RST flag with SEQ=28500 to Request Single Transmission of the missing segmen
- F. TCP will collect the segments and forward them to the application layer where the SEQ numbers will be processed and a retransmit request will occur for the entire packe
Answer: C
NEW QUESTION 11
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. Echo Reques
- B. Destination Unreachabl
- C. Router redirec
- D. Echo Repl
Answer: B
NEW QUESTION 12
Choose two true statements that characterize Distance Vector Routing?
- A. Routers send a copy of their routing table to their neighbors periodicall
- B. Routers flood link information throughout the entire are
- C. Network converges quickly (within several seconds) after a topology chang
- D. Routers do not have precise knowledge of the entire network topolog
Answer: AD
NEW QUESTION 13
Which field in the IP routing table contains the name or address of the neighbour that advertised the prefix to the router?
- A. Preferenc
- B. Metri
- C. Dest prefi
- D. Next ho
Answer: D
NEW QUESTION 14
What are the tasks of a Routing Table Manager (RTM)? (Choose 2)
- A. To select the best route from among multiple routing protocol
- B. To select the best route using the metric as criteri
- C. To send its best route to all its directly connected neighbor
- D. To install its best route in the routing tabl
Answer: AD
NEW QUESTION 15
Which of the following statements BEST describes the purpose of UDP (Select two)?
- A. Provide a connectionless delivery servic
- B. Provide a connection oriented delivery servic
- C. Provide an unreliable transmission servic
- D. Provide a reliable transmission servic
Answer: AC
NEW QUESTION 16
How does the Transport Layer identity which application is to receive the data?
- A. By using the IP address of the packe
- B. By using the MAC address of the fram
- C. By using port number
- D. By using Connection Identifier Numbers (CINs).
Answer: A
NEW QUESTION 17
Which of the following is not supported on the Alcatel-Lucent 7450 ESS?
- A. Support for IPv6.
- B. Support for PO
- C. Upgrade path to the Alcatel-Lucent 7750 S
- D. Support for IS-IS
Answer: C
NEW QUESTION 18
Which of the following are protocols belonging to the OSI suite of protocols? (Choose two)
- A. OSPF
- B. BGP
- C. X.500
- D. IS-IS
- E. Ethernet
Answer: CD
NEW QUESTION 19
What is the purpose of TCP flow control?
- A. It restricts the sender from sending too much data when there is congestion in the networ
- B. It allows the receiver to control the rate at which the sender transmits dat
- C. It forces the sender to send only one segment at a tim
- D. It allows the receiver to drop segments without the sender having to retransmi
Answer: B
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