Module 2: Network Connections

Networking devices are sometimes referred to as

"intermediary devices" because they are usually located in the path that messages take between a source host and a destination host.

Which two functions are provided to users by the context-sensitive help feature of the Cisco IOS CLI? (Choose two.)

-displaying a list of all available commands within the current mode. -determine which option, keyword, or argument is available for the entered command.

When a hostname is configured through the Cisco CLI, which three naming conventions are part of the guidelines? (Choose three.)

-the hostname should contain no spaces -the host name should be fewer than 64 characters -the host name should begin with a letter

To what subnet does the IP address 10.1.100.50 belong if a subnet mask of 255.255.0.0 is used?

10.1.0.0

Which of the following is a low-power, shorter range wireless technology that is intended to replace wired connectivity for accessories such as speakers or a mouse?

Blue-tooth

Which wireless technology can be used to connect wireless headphones to a computer?

Blue-tooth

Bluetooth

Bluetooth is a low-power, shorter range wireless technology that is intended to replace wired connectivity for accessories such as speakers, headphones, and microphones.

What are two recommendations for an organization that is implementing network device naming standards? (Choose two.)

Device names should be in a consistent format, Each device should have a unique and meaningful name.

Devices access the Ethernet LAN using an

Ethernet Network Interface Card (NIC)

The most common type of cellular telephone network is?

GSM network

What is a technology used in a cellular telephone network?

Global System for Mobile Communications (GSM)

In addition to smart phones and mobile devices, there are many other components that can be part of a local area network. Some examples of network components are personal computers, servers, networking devices, and cabling. These components can be grouped into four main categories:

Hosts Peripherals Network devices Network media

What are the three parts to the IP configuration?

IP address, subnet mask, Default gateway

Which statement describes the physical topology for a LAN?

It defines how hosts and network devices connect to the LAN

Each Ethernet NIC has a unique address permanently embedded on the card known as a?

Media Access Control (MAC) address.

Dynamic IP Configuration

Most end-user devices can be set up to receive network configuration information dynamically. This enables the device to request an address from a pool of addresses assigned by a Dynamic Host Configuration Protocol (DHCP) server located within the network.

Which of the following is a wireless communication technology that enables a smartphone to communicate with a payment system within a few centimeters away?

NFC

Which wireless technology is used on smart phones to transmit data to another device within very close proximity?

NFC

Which memory location on a Cisco router or switch stores the startup configuration file?

NVRAM

Near Field Communications

Near Field Communication (NFC) is a wireless communication technology that enables data to be exchanged by devices that are in very close proximity to each other, usually less than a few centimeters.NFC uses electromagnetic fields to transmit data.

An administrator has just changed the IP address of an interface on an IOS device. What else must be done in order to apply those changes to the device?

Nothing must be done. Changes to the configuration on an IOS device take effect as soon as the command is typed correctly and the Enter key has been pressed.

Which memory location on a Cisco router or switch will lose all content when the device is restarted?

RAM

Global Positioning System

The GPS uses satellites to transmit signals that cover the globe. The smartphone can receive these signals and calculate the phone's location to an accuracy of within 10 meters.

network interface card (NIC)

The NIC is a piece of hardware that enables the device to connect to the network medium, either wired or wireless.

IP address

This identifies the host on the network.

Default gateway

This identifies the networking device that the host uses to access the internet or another remote network.

Subnet mask

This is used to identify the network on which the host is connected.

What is the default SVI on a Cisco switch?

VLAN 1

A physical topology diagram includes which of the following? (Choose three)

Where hosts and and network devices are located. Where wiring is installed.

A traveling sales representative uses a cell phone to interact with the home office and customers, track samples, make sales calls, log mileage, and upload/download data while at a hotel. Which internet connectivity method would be a preferred method to use on the mobile device due to the low cost?

Wi-Fi

Wi-Fi

Wi-Fi transmitters and receivers located within the smartphone enable the phone to connect to local networks and the internet. In order to receive and send data on a Wi-Fi network, the phone needs to be within the range of the signal from a wireless network access point.

Manual IP Configuration

With manual configuration, the required values are entered into the device via the keyboard, typically by a network administrator. The IP address that is entered is referred to as a static address and and must be unique on the network.

IPv6 addresses

are 128 bits in length and written as a string of hexadecimal values.

Which functionality is provided by DHCP?

automatic assignment of an IP address to each host

Networking devices

connect other devices, mainly hosts. These devices move and control network traffic. Examples of network devices include hubs, switches, and routers.

Which IP configuration parameter provides the IP address of a network device that a computer would use to access the internet?

default gateway

What is the structure of an IPv4 address called?

dotted-decimal format

How is an IPv4 address represented?

four decimal numbers between 0and 255 separated by periods.

An IPv4 subnet mask

is a 32-bit value that differentiates the network portion of the address from the host portion.

Hotspot

is an area where Wi-Fi signals are available.

The default gateway address

is the IP address of the router that the host will use to access remote networks, including the internet.

Which statement is true about the running configuration file in a Cisco IOS device?

it affects the operation of the device immediately when modified.

What is the function of the shell in an OS?

it interfaces between the users and the kernel.

When a network administrator changes the IPv4 and IPv6 address of a computer, which topology diagram will need to be updated?

logical topology diagram

An IP address can be configured in two ways:

manually or assigned automatically by a DHCP server.

Which category of network components includes wires and cables used in a wired network?

media

When the growth of a small network is being planned, which design element will include the physical and logical topology of the network?

network documentation

To physically connect to a network, an end-user device must have a

network interface card (NIC)

Which two statements are true regarding the user EXEC mode? (Choose two.)

only some aspects of the router configuration can be viewed the device prompt for this mode ends with >

To manually configure an IPv4 address on a Windows host

open the Control Panel > Network Sharing Center > Change adapter settings and choose the adapter. Next right-click and select Properties to display the Local Area Connection Properties, as shown in the figure.Highlight Internet Protocol Version 4 (TCP/IPv4) and click Properties to open the Internet Protocol Version 4 (TCP/IPv4) Properties window, shown in the figure. Configure the IPv4 address and subnet mask information, and default gateway.

Which type of access is secured on a Cisco router or switch with the enable secret command?

privilege exec

Network media

provides connections between hosts and network devices. Network media can be wired, such as copper and fiber optic, or use wireless technologies.

peripheral devices

rely on their connected host to perform all network operations. Examples of shared peripherals are cameras, scanners, and locally attached printers.

Hosts

send and receive user traffic. A host is a generic name for most end-user devices. A host has an IP address. Examples of hosts are personal computers and network attached printers.

A teenager has asked the grandparents for a specific type of mobile technology. The grandparents do not remember the specific name of the device, but remember that the teenager wants to receive a cell phone call on it. Which technology is likely to be the one the teenager wants?

smart watch

What type of interface has no physical port associated with it?

switch virtual interface (SVI)

A logical topology illustrates what?

the relevant network configuration information.

Why would a technician enter the command copy startup-config running-config?

to copy an existing configuration into a RAM

A router with a valid operating system contains a configuration file stored in NVRAM. The configuration file has an enable secret password but no console password. When the router boots up, which mode will display?

user EXEC mode