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Q:

Explain the difference between a classful and a classless routing protocol.

Answer

Classless routing protocols advertise subnet mask information along with the network prefixes. Classful routing protocols do not. Therefore, for a classful protocol, all subnets for the major network number being used must be the same length. Also, classful protocol cannot support discontiguous networks prefixes.

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Subject: CCNP

Q:

What is the full IPv6 address represented by FF02::130F:5?

Answer

FF02:0000:0000:0000:0000:0000:130F:0005

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Subject: CCNP

Q:

What are the access, distribution, and core components of a North American phone number?

Answer

The last four digits are the used at the access layer to identify a particular telephone. The next three numbers are used at the distribution layer to identify an exchange that services several phone numbers. The area code is used at the core level for routing between different regions.

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Subject: CCNP

Q:

Why are multiple protocols used, such as a package, addressing, delivery, and transportation, instead of using one protocol defining everything?

Answer

Using multiple protocols is modular and allows changes to one protocol without affecting the others. For example, if the addressing protocol is dependent on the delivery protocol, changes to one would imply changes need to be made to the other.

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Subject: CCNP

Q:

Describe the difference between routing and switching.

Answer

Routing moves a letter or telephone call to the access layer (as in a street or telephone exchange). Switching makes the final delivery. A switching decision is made on the part of the address that is not used in routing (as in the street number or last four digits of a phone number).

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Subject: CCNP

Q:

Which three IP addresses can be assigned to hosts if the subnet mask is /27 and subnet zero is usable?

A. 10.15.32.17
B. 17.15.66.128
C. 66.55.128.1
D. 135.1.64.34
E. 129.33.192.192
F. 192.168.5.63

Answer

Answer : A C D


 


 


 


Explanation: If you follow the cram table,  /27 is mask 255.255.255.224. 3 bits were borrowed with value of 32. Follow the fourth octets of the addresses:
A is a usable host address.
B is classified as a network address
C is a usable host address form the subnet 0
D is a usable host address
E is a network address
F is a broadcast address

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Subject: CCNA

Q:

What is the purpose of the DHCP server?

A - to provide storage for email
B - to translate URLs to IP addresses
C - to translate IPv4 addresses to MAC addresses
D - to provide an IP configuration information to hosts

Answer

Answer : D


Explanation:The main purpose of the DHCP server is to provide IP configuration parameters to hosts such as the default gateway, domain name, Domain Name System – DNS .

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Subject: CCNA

Q:

All hosts in the networks have been operational for several hours when the DHCP server goes down. What happens to the hosts that have obtained service from the DHCP server?

A. The hosts will not be able to communicate with any other hosts.
B. The hosts will continue to communicate normally for a period of time.
C. The hosts will be able to communicate with hosts outsides their own network
D. The hosts will only be able to communicate with other hosts by IP address not by host name

Answer

Answer : B


 


Explanation : Dynamic Host configuration Protocol – DHCP – assigns an IP address to a client for a limited period of time, this address is then saved in a database. When the DHCP Server goes down, that client can still use the allocated IP address for a limited period of time.

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Subject: CCNA