200-125 | Which two correctly describe steps in the OSI data…

Question: 7

Which two correctly describe steps in the OSI data encapsulation process? (Choose two.)

A. The presentation layer translates bits into voltages for transmission across the physical link.
B. The data link layer adds physical source and destination addresses and an FCS to the segment.
C. Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
D. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
E. The transport layer divides a data stream into segments and may add reliability and flow control information.

Answer: CE

200-125 | Which condition does the err-disabled…

Question: 5

Which condition does the err-disabled status indicate on an Ethernet interface?

A. There is a duplex mismatch.
B. The device at the other end of the connection is powered off.
C. The serial interface is disabled.
D. The interface is configured with the shutdown command.
E. Port security has disabled the interface.
F. The interface is fully functioning.

Answer: E

200-125 | What will happen if a private IP address…

Question: 5

What will happen if a private IP address is assigned to a public interface connected to an ISP?

A. A conflict of IP addresses happens, because other public routers can use the same range.
B. Addresses in a private range will not be routed on the Internet backbone.
C. Only the ISP router will have the capability to access the public network.
D. The NAT process will be used to translate this address to a valid IP address.

Answer: B

200-125 | What are three advantages of VLAN…

Question: 4

What are three advantages of VLANs? (Choose three.)

A. They establish broadcast domains in switched networks.
B. They provide a low-latency internetworking alternative to routed networks.
C. They utilize packet filtering to enhance network security.
D. They can simplify adding, moving, or changing hosts on the network.
E. They allow access to network services based on department, not physical location.
F. They provide a method of conserving IP addresses in large networks.

Answer: A,D,E

200-125 | Which command can you….

Question: 3

Which command can you enter to determine whether serial interface 0/2/0 has been configured using HDLC encapsulation?

A. router#show platform
B. router#show interfaces Serial 0/2/0
C. router#show ip interface s0/2/0
D. router#show ip interface brief

Answer: B

200-125 | When an interface is configured….

Question: 2

When an interface is configured with PortFast BPDU guard, how does the interface respond when it receives a BPDU?

A. It continues operating normally.
B. It goes into a down/down state.
C. It becomes the root bridge for the configured VLAN.
D. It goes into an errdisable state.

Answer: D

200-125 | In which two formats can…


In which two formats can the IPv6 address fd15:0db8:0000:0000:0700:0003:400F:572B be written? (Choose two.)

A. fd15:0db8:0000:0000:700:3:400F:527B
B. fd15::db8::700:3:400F:527B
C. fd15:db8:0::700:3:4F:527B
D. fd15:0db8::7:3:4F:527B
E. fd15:db8::700:3:400F:572B

Answer: A,E

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