Q:

What is the bit length and expression form of a MAC address?

Answer

48 bits (6 bytes) expressed as a hexadecimal number.

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Subject: CCNA

2 4579
Q:

Which switching technology reduces the size of a broadcast domain?

A) ISL B) 802.1Q
C) VLANs D) STP
 
Answer & Explanation Answer: C) VLANs

Explanation:

Virtual LANs break up broadcast domains in layer 2 switched internetworks.

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0 4569
Q:

A static map to the S-AMER location is required. Which command should be used to create this map?

A. frame-relay map ip 172.16.1.3 704 broadcast
B. frame-relay map ip 172.16.1.3 196 broadcast
C. frame-relay map ip 172.16.1.3 702 broadcast
D. frame-relay map ip 172.16.1.3 344 broadcast

Answer

Answer: B

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Subject: CCNA

0 4559
Q:

Which encryption type does WPA2 use?

A) AES - CCMP B) PPK via IV
C) PSK D) TKIP/MIC
 
Answer & Explanation Answer: A) AES - CCMP

Explanation:

WPA2 uses AES-CCMP for encryption. WPA uses TKIP

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0 4553
Q:

Which two descriptions are correct about characteristics of IPv6 unicast addressing? (Choose two)

A. Global addresses start with 2000::/3.
B. Link-local addresses start with FF00::/10.
C. Link-local addresses start with FE00:/12.
D. There is only one loopback address and it is ::1.

Answer

Answer : A , D


Explanation:


An IPv6 Unicast address identifies a single network interface. The Internet Protocol delivers packets sent to a unicast address to that specific interface.

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Subject: CCNA

3 4549
Q:

You need to gather the IP address of a remote switch that is located in Hawaii. What can you do to find the address?

A) Issue the show ip route command on the router connected to the switch B) Issue the show cdp neighbor command on the router connected to the switch
C) Issue the show ip arp command on the router connected to the switch D) Issue the show cdp neighbors detail command on the router connected to the switch
 
Answer & Explanation Answer: D) Issue the show cdp neighbors detail command on the router connected to the switch

Explanation:

Although option A is certainly the "best" answer, unfortunately option E will work just fine and your boss would probably prefer you to use the show cdp neighbors detail command.

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0 4531
Q:

Mention different memories used in a CISCO router ?

Answer

Different Memories used in a CISCO router are as follows :


NVRAM stores the startup configuration file.

DRAM stores the configuration file that is being executed.

Flash Memory – stores the Cisco IOS.

 

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Subject: CCNA
Job Role: Network Engineer

7 4508
Q:

With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?

A) Point-to-Point B) Backbone area 0
C) Broadcast multi-access D) Non-broadcast multi-access
 
Answer & Explanation Answer: A) Point-to-Point

Explanation:

No DR is assigned on any type of point-to-point link. No DR/BDR is assigned on the NBMA point-to-multipoint due to the hub/spoke  topology. DR and BDR are elected on broadcast and non-broadcast multi-access network. Frame relay is a non-broadcast multiaccess (NBMA) network by default.

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0 4468