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CCNA QUESTIONS : PART 31

Host A receives a frame and discards it after determining that it is corrupt. At which OSI layer are frames checked for errors?

Application

Network

Physical

Data-link

FCS or CRC

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Identify which of the services below use both TCP and UDP ports:

30

FTP

TFTP

DNS

SSH

SHOW ANSWER

One of the routers in your company has just received information about network 172.16.10.0/24 from multiple sources. Which of the below will the router consider as the most reliable source for network 172.16.10.0/24?

An EIGRP update for network 172.16.10.0/24

An OSPF update for network 172.16.10.0/24

A default route with a next hop address of 172.16.0.1

A directly connected interface with an IP address of 172.16.10.254/24

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Which of the following commands is used to verify the encapsulation type on a frame relay link?

show frame-relay map

show frame-relay lmi

show frame-relay

show interfaces

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Which of the following options are used in standard access lists?

Destination address and subnet mask.

Source address and wildcard mask

Destination address and wildcard mask

Destination address and subnet mask

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What would the result be when the following commands are executed on a Cisco Catalyst switch:
TechTarget-SW1 (config-if)# switchport port-security
TechTarget-SW1 (config-if)# switchport port-security mac-address sticky

The MAC address learned dynamically is saved in the switch's running-configuration.

The MAC address learned dynamically is saved in the switch's startup-configuration.

The MAC address learned dynamically is saved permanently in the VLAN database.

The statically configured MAC address is saved in the switch's running-configuration when frames from that address are received.

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Which of the following requires that all channels in a message transmission path be of the same speed ?

Message-switched networks

Packet-switched networks

Circuit-switched networks

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FDDI is an example of which topology ?

Bus Topology

Ring Topology

Star Topology

Mesh Topology

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Which of the following is an example of Exterior Gateway Protocol

Open Short Path First(OSPF)

Border Gateway Protocol(BGP)

Routing Information Protocol(RIP)

All of the above

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How many fiber rings are used in the FDDI cabling ?

unicast

1

2

3

4

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FDDI access mechanism is similar to that of............

IEEE 802.5

CSMA/CD

ALOHA

IEEE 802.4

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State True of False for definition of an autonomous system(AS).

i) An AS is defined as a physical portion of a larger IP network.

ii) An AS is normally comprised of an inter-network within an organization.

i-True, ii-True

i-True, ii-False

i-False, ii-True

i-False, ii-False

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Frame relay technique uses

Circuit switching

Message switching

Connection oriented Packet switching

Hybrid switching

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