DHomesb Chapter 6 – CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1. Which port number is used by SMTP?

20

21

25

26

110

2. What three items are contained in an Ethernet header and trailer? (Choose three.)

source IP address

source MAC address

destination IP address

destination MAC address

error-checking information

DHomesb Chapter 5 – CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1. How large are IPv4 addresses?

8 bits

16 bits

32 bits

64 bits

128 bits

2.

Refer to the graphic. A user at the workstation cannot connect to the server. All cables have been tested and are working and all devices have IP addressing. However, the user cannot ping the server. What is causing the problem?

The router interface does not have a default gateway.

The switch does not have an IP address and default gateway.

The workstation and server are on different logical networks.

The workstation does not know the MAC address of the switch.

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

1. What are three commonly followed standards for constructing and installing cabling? (Choose three.)

pinouts

cable lengths

connector color

connector types

cost per meter (foot)

tensile strength of plastic insulator

2. 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

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

1. 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

2. 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

DHomesb Chapter 2 – CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1. A computer in the Advanced Technology Center computer room on the second floor, room number 217, has the computer name ATC_217_7. What fact is true about the computer name?

The name is dynamically assigned by the DNS server.

The name is required to allow connectivity to the DHCP server.

The name must include the floor number to support the SLA agreement.

The names of all devices in a workgroup must be the same to allow LAN connectivity.

The name makes it easier for users to reference the device when connecting to it to share resources.

2. Which three pieces of information must be specified on a computer to allow that computer to send and receive information across networks? (Choose three.)

IP address

subnet mask

closest server

default gateway

operating system

network card manufacturer

DHomesb Chapter 1 - CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1. Administrators at a multicampus college need access to their schedules wherever the administrators go. Which computing device would be the most appropriate?

PDA

laptop

desktop

mainframe

gaming device

2. Which component is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system?

CPU

surge suppressor

motherboard

hard drive

1. Which two statements are true for link-state routing protocols? (Choose two.)

Routers that run a link-state protocol can establish a complete topology of the network.

Routers in a multipoint network that run a link-state protocol can exchange routing tables.

Routers use only hop count for routing decisions.

The shortest path first algorithm is used.

Split horizon is used to avoid routing loops.

2.

Refer to the exhibit. RouterA and RouterB cannot successfully exchange EIGRP routes. What is the problem?

The hello intervals do not match.

The autonomous system numbers do not match.

The no auto-summary command is missing from both routers.

The ip bandwidth-percent command is missing from RouterB.

1. A wireless client is attempting to establish a connection with a wireless access point. What process does the client use to discover the access points which are available to it?

probing

beaconing

association

authentication

2.

Refer to the exhibit. Each switch is shown with its MAC address. Which switch will be elected as the spanning-tree root bridge if the switches are configured with their default priority values?

switch A

switch B

switch C

switch D

switch E

switch F

1. What are two characteristics of DSL technology? (Choose two.)

Uploads typically offer larger transfer rates than downloads.

Service providers deploy DSL in the local loop of the telephone network.

DSL download rates are reduced by large volumes of POTS voice traffic.

Filters and splitters allow POTS and DSL traffic to share the same medium.

DSL is a shared medium that allows many users to share bandwidth available from the DSLAM.

2.

Refer to the exhibit. What is the effect of the extended ACL when applied inbound on the S0/0/0 interface on R2?

All IP traffic will be permitted during the specified days and time range.

Both IP and Telnet traffic will be permitted during the specified days and time range.

Only Telnet traffic destined for 172.16.10.0/24 will be permitted during the specified days and time range.

Telnet traffic will be permitted only during the specified days and time range. All other network traffic will be permitted any time.

1. Which OSI layers offers reliable, connection-oriented data communication services?

application

presentation

session

transport

network

2.

Refer to the exhibit. The host was disconnected from switch 2 and connected to switch 1. Which combination of IP address, subnet mask, and default gateway should be assigned to this host to allow it to function in the network?

IP address: 10.10.9.37 Subnet mask: 255.255.255.240 Default gateway: 10.10.9.35

IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35

IP address: 10.10.9.29 Subnet mask: 255.255.255.248 Default gateway: 10.10.9.35

IP address: 10.10.9.32 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35

IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 196.1.105.6

IP address: 10.10.9.63 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35