Q:

Describe the functions of DNS and DHCP in the network?

Answer

Dynamic Host Configuration protocol (DHCP) provides network configuration information (including IP address) to hosts, eliminating the need to perform the configurations manually.


Domain Name Service  (DNS)resolves hostnames - both internet names such as www.routersim.com and device names such as workstation 2 to IP addresses, eliminating the need to know the IP address of a device for connection purposes.

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Subject: CCNA

0 1875
Q:

What type of Cisco tagging information allows VLANs to be multiplexed over a trunk link through an external encapsulation method?

Answer

Inter-Switch Link (ISL)

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Subject: CCNA

1 1872
Q:

Which proprietary Cisco STP extensions would put a switch port into err-disabled if a BPDU is received on this port?

Answer

BPDUGuard

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Subject: CCNA

0 1867
Q:

In thefollowing output, what type of NAT is being used?

ip nat pool todd-nat 170.168.10,10 170.168.10.20 netmask 255.255.255.0

Answer

Dynamic NAT

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Subject: CCNA

0 1844
Q:

Identify the fields in the Data Link portion of an Ethernet frame?

Answer

The fields in the Data Link portion of a frame include the Preamble, Start Frame Delimiter, Destination MAC address, Source MAC address, Length or Type, Data, and Frame Check Sequence.

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Subject: CCNA

0 1803
Q:

What command would you use to set an access list on a VTY line?

Answer

line vty 0 4


access - class 110 in 

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Subject: CCNA

0 1802
Q:

Which Cisco 802.1d extension stops BPDU from being transmitted out a port?

Answer

PortFast

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Subject: CCNA

0 1788
Q:

What is the Classs A Private IP address space?

Answer

10.0.0.0 through 10.255.255.255

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Subject: CCNA

0 1704