Breathing 4A0-100 Dumps Questions 2021

NEW QUESTION 1
Which of the following best describes a repeater?

• A. A passive device simply used to connect two or more cable
• B. It does not generate or amplify any signal
• C. A device that receives and retransmits a signal out its ports but does not do any Layer 2 analysis of the dat
• D. A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitte
• E. A device that receives a signal and based on the Layer 3 destination address makes a decision on which ports the signal should be retransmitte

Answer: B

NEW QUESTION 2
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 3
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 4
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?

• A. ICMP echo request, ARP request, ARP reply, ICMP echo repl
• B. ARP request, ARP reply, ICMP echo request, ICMP echo repl
• C. ICMP echo request, ICMP echo reply, ARP request, ARP repl
• D. ICMP echo request, ARP reply, ARP request, ICMP echo repl

Answer: B

NEW QUESTION 5
The method by which Ethernet frames are associated to a specific VLAN is referred to as:

• A. Segmenting
• B. Stacking
• C. Routing
• D. Tagging

Answer: D

NEW QUESTION 6
What happens immediately after an Ethernet switch receives an Ethernet frame?

• A. It records the destination MAC address and the interface on which it arrive
• B. It records the source MAC address and the interface on which it arrive
• C. It floods the frame out of all its interfaces except the interface on which the frame arrive
• D. It transmits the frame out of the appropriate interfac

Answer: B

NEW QUESTION 7
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 service
• 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 service
• D. The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTM

Answer: A

NEW QUESTION 8
Which of the following SAP types can be associated to a VPWS? (Choose 3)

• A. Ethernet
• B. ATM
• C. Token Ring
• D. Frame Relay

Answer: ABD

NEW QUESTION 9
The statement below describes which of the following activities?
"A set of tasks that moves a packet from its entry into an IP network to its exit from the IP network."

• A. IP forwarding
• B. IP decapsulation
• C. IP encapsulation
• D. IP tunneling

Answer: A

NEW QUESTION 10
Which of the following are examples of Time Division Multiplexing (Choose two)?

• A. Etherne
• B. Token-Rin
• C. SONET/SD
• D. E1 carrie
• E. PPP

Answer: CD

NEW QUESTION 11
Which statement best describes a SAP?

• A. The Service ATM Point is used for ATM connections to a P
• B. The Service Access Point is defined on the PE device and is the customers access to the servic
• C. The Service Access Point is defined on the P device and is the customers access to the servic
• D. The Service Access Point is defined on the CE device and is the customers access to the servic

Answer: B

NEW QUESTION 12
(Click the Exhibit Button below)

An Ethernet Local Area Network (LAN) consists of the
following components:
Four 24-port hubs & Two 16-port switches
How many broadcast domains are on this LAN?

• A. 1
• B. 2
• C. 5
• D. 32

Answer: A

NEW QUESTION 13
Which of the following are FALSE statements about the OSPF routing protocol? Choose two.

• A. OSPF is a link state protocol with fast convergenc
• B. OSPF supports hierarchy with multiple area
• C. The default metric for OSPF is hop coun
• D. OSPF does not support VLS
• E. OSPF supports neighbor authenticatio

Answer: CD

NEW QUESTION 14
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 transmissio
• B. The host is able to detect the transmission speed of the Ethernet switch port to which the host is connecte
• C. The host will only transmit data when it detects that no other devices are transmittin
• D. The host will only transmit upon a timer expir
• E. The host will only transmit when it receives the toke

Answer: C

NEW QUESTION 15
Given a network address of 116.14.0.0, which of the following is a valid host address when using the subnet mask 255.255.255.240?

• A. 116.14.17.16
• B. 116.14.17.31
• C. 116.14.17.192
• D. 116.14.17.189

Answer: D

NEW QUESTION 16
Which of the following is a feature of a VLAN?

• A. A VLAN allows multiple Ethernet switches to be connected in a single broadcast domai
• B. A VLAN allows multiple Ethernet switches to be connected in a single collision domai
• C. A VLAN can separate ports on the same switch into different broadcast domain
• D. A VLAN can separate ports on the same switch into different collision domain

Answer: C

NEW QUESTION 17
One of the tasks of the boot options file (BOF) is to:

• A. Specify authorization information to control access to the route
• B. Define an IP address for the CPM Ethernet por
• C. Initialize the hardwar
• D. Set the date/time for the syste

Answer: B

NEW QUESTION 18
In what type of network is a broadcast storm likely to occur?

• A. An Ethernet network with redundant paths not running ST
• B. An ATM networ
• C. A SONET networ
• D. All of the abov

Answer: A