DHomesb Chapter 4 - CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1) Which definition describes the term Internet?
a group of PCs connected together on a LAN
a group of PCs connected together by an ISP
* a network of networks that connects countries around the world
a worldwide collection of networks controlled by a single organization

2) What type of connection point is a point of presence (POP)?
between a client and a host
between two local networks
between a computer and a switch
* between an ISP and a home-based LAN
3) What is the term for the group of high-speed data links that interconnect ISPs?
Internet LAN
ISP backbone
Internet gateways
Internet providers
* Internet backbone

4) Which device can act as a router, switch, and wireless access point in one package?
hub
bridge
modem
repeater
* ISR

5) What are three characteristics of business class ISP service? (Choose three.)
* fast connections
* extra web space
free Windows upgrade
cheapest cost available to all users
* additional e-mail accounts
replacement hardware at no cost

6) What is a major characteristic of asymmetric Internet service?
Download speeds and upload speeds are equal.
Download speeds are slower than upload speeds.
* Upload speeds and download speeds are different.
Upload speeds and download speeds are irrelevant.

7) Which three elements are required to successfully connect to the Internet? (Choose three.)
* an IP address
file sharing enabled
* a network connection
server services enabled
* access to an Internet service provider
an address obtained directly from the RIR

8) What term describes each router through which a packet travels when moving between source and destination networks?
NOC
ISP
* hop
segment

9) What does the tracert command test?
NIC functionality
the ISP bandwidth
* the network path to a destination
the destination application functionality

10) What type of end-user connectivity requires that an ISP have a DSLAM device in their network?
analog technology
cable modem technology
* digital subscriber line technology
wireless technology

11) Why would an ISP require a CMTS device on their network?
* to connect end users using cable technology
to connect end users using analog technology
to connect end users using wireless technology
to connect end users using digital subscriber line technology

12)









Refer to the graphic. What type of cabling is shown?
STP
UTP
coax
* fiber

 


13)







Refer to the graphic. What type of cabling is shown?
STP
* UTP
coax
fiber

14) Which two places are most appropriate to use UTP cabling? (Choose two.)
between buildings
* in a home office network
where EMI is an issue
in a cable TV network
* inside a school building
in a manufacturing environment with hundreds of electrical devices

15) What does adherence to cabling standards ensure?
data security
no loss of signal
no electromagnetic interference
* reliable data communications

16)









Refer to the graphic. What type of cable is shown?
* crossover
eight coax channels
multimode fiber
single-mode fiber
straight-through

17) What connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling?
ST
BNC
RJ-11
* RJ-45

18) Which two characteristics describe copper patch panels? (Choose two.)
uses RJ-11 jacks
* uses RJ-45 jacks
supports only data transmissions
* allows quick rearrangements of network connections
forwards transmissions based on MAC addresses

19) What are two advantages of cable management? (Choose two.)
requires no preplanning
* aids in isolation of cabling problems
* protects cables from physical damage
provides compliance with future standards
provides a short-term solution for cable installation

20) What are two common causes of signal degradation when using UTP cabling? (Choose two.)
installing cables in conduit
* having improper termination
losing light over long distances
installing low quality cable shielding
* using low quality cables or connectors

21) What are three commonly followed standards for constructing and installing cabling? (Choose three.)
* pinouts
* cable lengths
connector color
* connector types
cost per meter (foot)

credit 

DHomesb Chapter 3 - CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1	Top of Form What device is typically used as the default gateway for a computer? a server hosted by the ISP the router interface closest to the computer a server managed by a central IT department the switch interface that connects to the computer Bottom of Form
2	Top of Form Which two items are included in a network logical map? (Choose two.) naming scheme IP addressing scheme length of cable runs physical location of networking devices specific layout of interconnections between networking devices and hosts Bottom of Form

3	Top of Form Which type of address is used in an Ethernet frame header? logical addresses only IP addresses only MAC addresses only broadcast addresses only Bottom of Form
4	Top of Form Which device accepts a message on one port and always forwards the message to all other ports? modem switch router hub Bottom of Form

5	Top of Form An integrated router can normally perform the functions of which two other network devices? (Choose two.) NIC switch e-mail server application server wireless access point Bottom of Form
6	Top of Form Which term is used to describe the process of placing one message format into another format so that the message can be delivered across the appropriate medium? flow control encapsulation encoding multicasting access method Bottom of Form

7	Top of Form What is the function of the FCS field in an Ethernet frame? detects transmission errors provides timing for transmission contains the start of frame delimiter indicates which protocol will receive the frame Bottom of Form
8	Top of Form Refer to the graphic. Five PCs are connected through a hub. If host H1 wants to reply to a message from host H2, which statement is true? H1 sends a unicast message to H2, but the hub forwards it to all devices. H1 sends a unicast message to H2, and the hub forwards it directly to H2. H1 sends a broadcast message to H2, and the hub forwards it to all devices. H1 sends a multicast message to H2, and the hub forwards it directly to H2. Bottom of Form

9	Top of Form Which two networking devices are used to connect hosts to the access layer? (Choose two.) router hub switch server computer Bottom of Form
10	Top of Form What is the purpose of logical addresses in an IP network? They identify a specific NIC on a host device. They are used to determine which host device accepts the frame. They provide vendor-specific information about the host. They are used to determine the network that the host is located on. They are used by switches to make forwarding decisions. Bottom of Form

11	Top of Form What is a benefit of having a router within the distribution layer? prevents collisions on a local network keeps broadcasts contained within a local network controls which hosts have access to the network controls host-to-host traffic within a single local network Bottom of Form
12	Top of Form Which two statements concerning networking standards are true? (Choose two.) adds complexity to networks encourages vendors to create proprietary protocols provides consistent interconnections across networks ensures that communications work best in a single-vendor environment simplifies new product development Bottom of Form

13	Top of Form If the default gateway is configured incorrectly on the host, what is the impact on communications? The host is unable to communicate on the local network. The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks. The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network. There is no impact on communications. Bottom of Form
14	Top of Form Host A needs to learn the MAC address of Host B, which is on the same LAN segment. A message has been sent to all the hosts on the segment asking for the MAC address of Host B. Host B responds with its MAC address and all other hosts disregard the request. What protocol was used in this scenario? ARP DHCP DNS WINS Bottom of Form

15	Top of Form What type of route allows a router to forward packets even though its routing table contains no specific route to the destination network? dynamic route default route destination route generic route Bottom of Form
16	Top of Form What is a reason for disabling simple file sharing? It enables the user to map a remote resource with a local drive. It enables the user to share all files with all users and groups. It enables the user to share printers. It enables the user to set more specific security access levels. Bottom of Form

17	Top of Form Which address does an NIC use when deciding whether to accept a frame? source IP address source MAC address destination IP address destination MAC address source Ethernet address Bottom of Form
18	Top of Form A switch receives a frame with a destination MAC address that is currently not in the MAC table. What action does the switch perform? It drops the frame. It sends out an ARP request looking for the MAC address. It floods the frame out of all active ports, except the origination port. It returns the frame to the sender. Bottom of Form

19	Top of Form Which table does a router use to make decisions about the interface through which a data packet is to be sent? ARP table routing table network table forwarding table Bottom of Form
20	Top of Form Refer to the graphic. What does the router do after it determines that a data packet from Network 1 should be forwarded to Network 2? It sends the data packet as it was received. It reassembles the frame with different MAC addresses than the original frame. It reassembles the data packet with different IP addresses than the original data packet. It reassembles both the packet and the frame with different destination IP and MAC addresses. Bottom of Form

21Top of Form

What does the 100 mean when referencing the 100BASE-T Ethernet standard?
	type of cable used
	type of data transmission
	speed of transmission
	type of connector required
	maximum length of cable allowed

Bottom of Form

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