Basic

Question 1

Which two statements about the purpose of the OSI model are accurate? (Choose two)
A. Defines the network functions that occur at each layer
B. Facilitates an understanding of how information travels throughout a network
C. Changes in one layer do not impact other layer
D. Ensures reliable data delivery through its layered approach

Answer 1

A. Defines the network functions that occur at each layer

B. Facilitates an understanding of how information travels throughout a network

Question 2

What is the default behavior of a Layer 2 switch when a frame with an unknown destination MAC address is received?
A. The Layer 2 switch drops the received frame
B. The Layer 2 switch floods packets to all ports except the receiving port in the given VLAN
C. The Layer 2 switch sends a copy of a packet to CPU for destination MAC address learning
D. The Layer 2 switch forwards the packet and adds the destination MAC address to Its MAC
address table

Answer 2

B. The Layer 2 switch floods packets to all ports except the receiving port in the given VLAN

Question 3

What is the destination MAC address of a broadcast frame?
A. 00:00:0c:07:ac:01
B. ff:ff:ff:ff:ff:ff
C. 43:2e:08:00:00:0c
D. 00:00:0c:43:2e:08
E. 00:00:0crfHfrff

Answer 3

B. ff:ff:ff:ff:ff:ff

Question 4

Which action is taken by a switch port enabled for PoE power classification override?

A. When a powered device begins drawing power from a PoE switch port a syslog message is generated
B. As power usage on a PoE switch port is checked data flow to the connected device is temporarily
paused
C. If a switch determines that a device is using less than the minimum configured power it assumes the device has failed and disconnects
D. If a monitored port exceeds the maximum administrative value for power, the port is shutdown
and err-disabled

Answer 4

D. If a monitored port exceeds the maximum administrative value for power, the port is shutdown
and err-disabled

Question 5

In which way does a spine and-leaf architecture allow for scalability in a network when additional access ports are required?

A. A spine switch and a leaf switch can be added with redundant connections between them
B. A spine switch can be added with at least 40 GB uplinks
C. A leaf switch can be added with a single connection to a core spine switch
D. A leaf switch can be added with connections to every spine switch

Answer 5

D. A leaf switch can be added with connections to every spine switch

Question 6

A frame that enters a switch fails the Frame Check Sequence. Which two interface counters are incremented? (Choose two)
A. runts
B. giants
C. frame
D. CRC
E. input errors

Answer 6

D. CRC

E. input errors

Question 7

What are two reasons that cause late collisions to increment on an Ethernet interface? (Choose two)
A. when the sending device waits 15 seconds before sending the frame again
B. when the cable length limits are exceeded
C. when one side of the connection is configured for half-duplex
D. when Carrier Sense Multiple Access/Collision Detection is used
E. when a collision occurs after the 32nd byte of a frame has been transmitted

Answer 7

B. when the cable length limits are exceeded

C. when one side of the connection is configured for half-duplex