100-101 ICND1 Online Test-CCNA Interconnecting Cisco Networking Devices 1 (ICND1)

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A switch has 48 ports and 4 VLANs. How many collision and broadcast domains exist on the switch (collision, broadcast)?

4, 48

48, 4

48, 1

1, 48

4, 1

What does a host on an Ethernet network do when it is creating a frame and it does not have the destination address?

Drops the frame

Sends out a Layer 3 broadcast message

Sends a message to the router requesting the address

Sends out an ARP request with the destination IP address

Which address type does a switch use to make selective forwarding decisions?

Source IP address

Destination IP address

Source and destination IP address

Source MAC address

Destination MAC address

A switch receives a frame on one of its ports. There is no entry in the MAC address table for the destination MAC address. What will the switch do with the frame?

drop the frame

forward it out of all ports except the one that received it

forward it out of all ports

store it until it learns the correct port

Which two options will help to solve the problem of a network that is suffering a broadcast storm? (Choose two.)

a bridge

a router

a hub

a Layer 3 switch

an access point

Which of the following are types of flow control? (Choose three.)

buffering

cut-through

windowing

congestion avoidance

load balancing

To what type of port would a cable with a DB-60 connector attach?

Serial port

Console port

Ethernet port

Fibre optic port

Which two characteristics describe the access layer of the hierarchical network design model? (Choose two.)

layer 3 support

port security

redundant components

VLANs

PoE

Which two characteristics apply to Layer 2 switches? (Choose two.)

Increases the number of collision domains

Decreases the number of collision domains

Implements VLAN

Decreases the number of broadcast domains

Uses the IP address to make decisions for forwarding data packets

At which layer of the OSI model does the protocol that provides the information that is displayed by the show cdp neighbors command operate?

application

transport

network

physical

data link

On a Cisco switch, which protocol determines if an attached VoIP phone is from Cisco or from another vendor?

RTP

TCP

CDP

UDP

Which two statements describe the operation of the CSMA/CD access method? (Choose two.)

In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.

In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.

The use of hubs to enlarge the size of collision domains is one way to improve the operation of the CSMA/CD access method.

After a collision, the station that detected the collision has first priority to resend the lost data.

After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.

After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data.

What are two common TCP applications? (Choose two.)

TFTP

SMTP

SNMP

FTP

DNS

A workstation has just resolved a browser URL to the IP address of a server. What protocol will the workstation now use to determine the destination MAC address to be placed into frames directed toward the server?

HTTP

DNS

DHCP

RARP

ARP

How does TCP differ from UDP? (Choose two.)

TCP provides best effort delivery.

TCP provides synchronized communication.

TCP segments are essentially datagrams.

TCP provides sequence numbering of packets.

TCP uses broadcast delivery.

What must occur before a workstation can exchange HTTP packets with a web server?

A UDP connection must be established between the workstation and its default gateway.

A UDP connection must be established between the workstation and the web server.

A TCP connection must be established between the workstation and its default gateway.

A TCP connection must be established between the workstation and the web server.

An ICMP connection must be established between the workstation and its default gateway.

An ICMP connection must be established between the workstation and the web server.

How does a switch differ from a hub?

A switch does not induce any latency into the frame transfer time.

A switch tracks MAC addresses of directly-connected devices.

A switch operates at a lower, more efficient layer of the OSI model.

A switch decreases the number of broadcast domains.

A switch decreases the number of collision domains.

Which statements accurately describe CDP? (Choose three.)

CDP is an IEEE standard protocol.

CDP is a Cisco proprietary protocol.

CDP is a datalink layer protocol.

CDP is a network layer protocol.

CDP can discover directly connected neighboring Cisco devices.

CDP can discover Cisco devices that are not directly connected.

Which statements are true regarding ICMP packets? (Choose two.)

They acknowledge receipt of TCP segments.

They guarantee datagram delivery.

TRACERT uses ICMP packets.

They are encapsulated within IP datagrams.

They are encapsulated within UDP datagrams.

Which layer of the OSI model controls the reliability of communications between network devices using flow control, sequencing and acknowledgments?

Physical

Data-link

Transport

Network

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100-101 ICND1 Online Test-CCNA Interconnecting Cisco Networking Devices 1 (ICND1)

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