Which three layers of the OSI model make up the application layer of the TCP/IP model? (Choose three.)

application presentation session

What makes it possible for e-mail to be sent and received on a wide variety of devices, including cell phones, PDAs, laptops, and desktop computers?

E-mail software is written using standards and protocols that ensure compatibility.

All of the devices run the same operating system software.

There is a single provider of e-mail server software.

The devices use the same e-mail client software, so they are compatible.

What are two reasons to create a hierarchical network design for an Ethernet network? (Choose 2.)

It will help to minimize the amount of broadcast traffic that Ethernet hosts will have to process.

Locating a host in a smaller network is easier than one large Ethernet network.

It allows for duplicate MAC addresses on the network since they are running out.

IP addresses can be used as a physical address to locate the device.

What are the three layers of the hierarchical design model? (Choose 3.)

distribution layer core layer access layer

What role does a router play on a network?

selecting the path to destination networks

forwarding frames based on a MAC address

connecting smaller networks into a single broadcast domain

What type of information is contained in a switch MAC table?

switch ports associated with destination MAC addresses

domain name to IP address mappings

switch ports associated with IP address mappings

routes to reach destination networks

What is the purpose of the core layer in the Cisco hierarchical network design model?

aggregation point for smaller networks

A technician is setting up equipment on a network. Which three devices will need IP addresses? (Choose three.)

an IP phonea server with two NICs a printer with an integrated NIC

a web camera that is attached directly to a host

What are three characteristics of multicast transmission? (Choose three.)

A single packet can be sent to a group of hosts. The range of 224.0.0.0 to 224.0.0.255 is reserved to reach multicast groups on a local network. Multicast transmission can be used by routers to exchange routing information.

Computers use multicast transmission to request IPv4 addresses.

The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.

What are two differences between binary and decimal numbers? (Choose two.)

Decimal numbers include 0 through 9.

Binary numbers are based on powers of 2.

Numbers typed on a keyboard are entered as binary and converted to decimal by the computer.

Decimal numbers are based on powers of 1.

Binary numbers consist of three states: on, off, null. Decimal numbers do not have states.

What are three private IPv4 address? (Choose three.)

10.1.1.1 172.16.4.4 192.168.5.5

When IPv4 is configured for a computer on a network, what does the subnet mask identify?

the part of the IP address that identifies the network

the dynamic subnetwork configuration

the pool of addresses assigned within the network

the device that the computer uses to access another network

Which destination IPv4 address does a DHCPv4 client use to send the initial DHCP Discover packet when the client is looking for a DHCP server?

the IP address of the default gateway

Which three addresses are not allowed to be in the DCHP pool for clients? (Choose 3.)

any address that has a host portion of .1

In which order do the DHCP messages occur when a client and server are negotiating address configuration?

DHCPDISCOVER, DHCPOFFER, DHCPREQUEST, DHCPACK

DHCPREQUEST, DHCPDISCOVER, DHCPACK, DHCPOFFER

DHCPOFFER, DHCPACK, DHCPDISCOVER, DHCPREQUEST

DHCPACK, DHCPREQUEST, DHCPOFFER, DHCPDISCOVER

Which function does NAT perform in a wireless router?

NAT takes an internal source IP address and translates it to a global IP address.

NAT takes a source IP address and translates it to a default gateway address.

NAT takes a local IP address and translates it to an internal source IP address.

NAT takes a destination IP address and translates it to a global IP address.

What is the primary motivation for development of IPv6?

capabilities addressing the need for simplification

Which three pieces of information are identified by a URL? (Choose three.)

the protocol that is being used the location of the resource the domain name that is being accessed

the MAC address of the web server

What is the advantage of using SSH over Telnet?

SSH provides secure communications to access hosts.

SSH operates faster than Telnet.

SSH supports authentication for a connection request.

What action does a DNS server take if it does not have an entry for a requested URL?

The server checks with another DNS server to see if it has an entry.

The server returns a "page not found" response to the client.

The server assigns a temporary IP address to the name and sends this IP address to the client.

What are three advantages of wireless over wired LAN technology? (Choose three.)

ease of installation lower on-going costs ease of expansion

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MULTIPLE SELECT QUESTION

10 sec • 1 pt

What are two sources of electromagnetic interference that can affect data transmissions? (Choose two.)

fluorescent light fixture

LED monitor

corded telephone

infrared remote control

microwave oven

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What is the purpose of an IP address?

It identifies the physical location of a data center.

It identifies a location in memory from which a program runs.

It identifies a return address for replying to email messages.

It identifies the source and destination of data packets on a network.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What type of network is defined by two computers that can both send and receive requests for resources?

client/server

peer-to-peer

enterprise

campus

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which statement describes the ping and tracert commands?

Tracert shows each hop, while ping shows a destination reply only.

Tracert uses IP addresses; ping does not.

Both ping and Tracert can show results in a graphical display.

ping shows whether the transmission is successful; Tracert does not.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

What is an advantage of the peer-to-peer network model?

scalability

high level of security

ease of setup

centralized

administration

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Which type of network model describes the functions that must be completed at a particular layer, but does not specify exactly how each protocol should work?

TCP/IP model

protocol model

reference model

hierarchical design model

MULTIPLE SELECT QUESTION

10 sec • 1 pt

Which three elements do all communication methods have in common? (Choose three.)

transmission medium

message type

message source

message destination

message data

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NWC203c_part4

What are two sources of electromagnetic interference that can affect data transmissions? (Choose two.)

What is the purpose of an IP address?

What type of network is defined by two computers that can both send and receive requests for resources?

Which statement describes the ping and tracert commands?

What is an advantage of the peer-to-peer network model?

Which type of network model describes the functions that must be completed at a particular layer, but does not specify exactly how each protocol should work?

Which three elements do all communication methods have in common? (Choose three.)

Which three layers of the OSI model make up the application layer of the TCP/IP model? (Choose three.)

Which two layers of the OSI model specify protocols that are associated with Ethernet standards? (Choose two.)

Which term refers to the set of rules that define how a network operates?

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