Here are the answers to Thursday's CCNA, CCNP, and Network+ exam practice questions! And here's a helpful hint for you CCNA and Network+ candidates - you really should be practicing with both those question types! ;)

CCNA:

In the MAC address aa-bb-cc-dd-ee-ff, what portion is the OUI ?

A. aa-bb

B. aa-bb-cc

C. dd-ee-ff

D. aa

E. ff

F. ee-ff

Answer: B. The Organizationally Unique Identifier (OUI) is the first half of the MAC address; the second half represents a hex value not previously used by the vendor identified by the OUI.


Network+:

Given the IP address 20.17.34.14 and using the default network mask, which portion of the address is the network portion?

A. 20

B. 20.17

C. 20.17.34

D. 20.17.34.14

Answer: A. The network mask for this Class A network address is 255.0.0.0, or /8, indicating that "20" is the network portion of the address.


CCNP / BSCI:

Consider the following configuration:

R2(config)#router eigrp 100
R2(config-router)#redistribute ospf 1 metric 1544 100 1 255 1500

What value does the "255" represent?

A. bandwidth

B. delay

C. load

D. reliability

E. MTU

Answer: C. From right to left, the values represent bandwidth, delay, reliability, load, and MTU.


CCNP / BCMSN:

Identify the true statements regarding Voice VLANs and trunking protocols.

A. 802.1p carries voice traffic in the native voice VLAN.

B. 802.1p carries voice traffic in the VLAN the admin creates for it.

C. 802.1q carries voice traffic in the native voice VLAN.

D. 802.1q carries voice traffic in the VLAN the admin creates for it.

Answer: A, D. 802.1p carries voice traffic in the native voice VLAN, while 802.1q carries voice traffic in the VLAN assigned as the Voice VLAN for that port.


CCNP / BCRAN:

What pin does the DCE use to send data to the DTE?

A. TxD

B. RxD

C. GRD

D. DTR

E. Pin 2

F. Pin 3

G. Pin 6

H. Pin 20

Answer: B, F. The DCE uses the Receive Data pin - pin 3, generally referred to as RxD - to send data to the DTE.


CCNP / CIT:

Short answer: What troubleshooting model are you using if your first step is to examine the routing table?

Answer: By going straight to L3 of the OSI model, you're using the divide-and-conquer method of troubleshooting.

See you in just a few minutes with a freshly baked batch of CCNA, CCNP, and Network+ questions!

To your certification exam success,

Chris Bryant
CCIE #12933
www.thebryantadvantage.com

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