CYBER 1-7 NETACAD MODULES

Which of the following is the name for all computers connected to a network that participate directly in network communication?

hosts

When data is encoded as pulses of light, which media is being used to transmit the data?

fiber-optic cable

Which two devices are intermediary devices? (Choose two)

• routers

• switches

Which connection physically connects the end device to the network?

NIC

Which connections are specialized ports on a networking device that connect to individual networks?

Interface

Which type of network topology lets you see which end devices are connected to which intermediary devices and what media is being used?

Logical

Which type of network topology lets you see the actual location of intermediary devices and cable installation?

Physical

When designers follow accepted standards and protocols, which of the four basic characteristics of network architecture is achieved?

Scalability

Confidentiality, integrity, and availability are requirements of which of the four basic characteristics of network architecture?

Security

With which type of policy, a router can manage the flow of data and voice traffic, giving priority to voice communications if the network experiences congestion?

QoS

Having multiple paths to a destination is known as redundancy. This is an example of which characteristic of network architecture?

fault tolerance

Which feature is a good conferencing tool to use with others who are located elsewhere in your city, or even in another country?

video communications

Which feature describes using personal tools to access information and communicate across a business or campus network?

BYOD

Which feature contains options such as Public, Private, Custom and Hybrid?

Cloud Computing

Which feature is being used when connecting a device to the network using an electrical outlet?

Powerline

Which feature uses the same cellular technology as a smartphone?

Wireless broadband

Which attack slows down or crashes equipment and programs?

Denial of Service (DoS)

Which option creates a secure connection for remote workers?

VPN

Which option blocks unauthorized access to your network?

Firewall

Which option describes a network attack that occurs on the first day that a vulnerability becomes known?

Zero-day

Which option describes malicious code running on user devices?

Virus, worn, or Trojan Horse

During a routine inspection, a technician discovered that software that was installed on a computer was secretly collecting data about websites that were visited by users of the computer. Which type of threat is affecting this computer?

spyware

Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?

extranet

A large corporation has modified its network to allow users to access network resources from their personal laptops and smart phones. Which networking trend does this describe?

BYOD

What is an ISP?

an organization that enables individuals and businesses to connect to the network

In which scenario would the use of a WISP be recommended?

a farm in a rural area without wired broadband access

What characteristic of a network enables it to quickly grow to support new users and applications without impacting the performance of the service being delivered to existing users?

scalability

A college is building a new dormitory on its campus. Workers are digging in the ground to install a new water pipe for the dormitory. A worker accidentally damages a fiber optic cable that connects two of the existing dormitories to the campus data center. Although the cable has been cut, students in the dormitories only experience a very short interruption of network services. What characteristic of the network is shown here?

fault tolerance

What are two characteristics of a scalable network? (Choose two.)

• suitable for modular devices that allow for expansion

• grows in size without impacting existing users

Which device performs the function of determining the path that messages should take through internetworks?

a router

Which two Internet connection options do not require that physical cables be run to the building? (Choose two.)

• satellite

• cellular

What type of network must a home user access in order to do online shopping?

the internet

How does BYOD change the way in which businesses implement networks?​

BYOD provides flexibility in where and how users can access network resources

An employee wants to access the network of the organization remotely, in the safest possible way. What network feature would allow an employee to gain secure remote access to a company network?

VPN

What is the Internet?

It provides connections through interconnected global networks

What are two functions of end devices on a network? (Choose two.)

• they are the interface between humans and the communication network

• they originate the data that flows through the network

Which access method would be most appropriate if you were in the equipment room with a new switch that needs to be configured?

console

Which access method would be most appropriate if your manager gave you a special cable and told you to use it to configure the switch?

console

Which access method would be the most appropriate in-band access to the IOS over a network connection?

telnet/SSH

Which access method would be the most appropriate if you call your manager to tell him you cannot access your router in another city over the internet and he provides you with the information to access the router through a telephone connection?

aux

Which IOS mode allows access to all commands and features?

privileged EXEC mode

Which IOS mode are you in if the Switch(config)# prompt is displayed?

global configuration mode

Which IOS mode are you in if the Switch> prompt is displayed?

user EXEC mode

Which two commands would return you to the privileged EXEC prompt regardless of the configuration mode you are in? (Choose two.)

• CTRL+Z

• end

What is the command to assign the name “Sw-Floor-2” to a switch?

hostname Sw-Floor-2

How is the privileged EXEC mode access secured on a switch?

enable secret class

Which command enables password authentication for user EXEC mode access on a switch?

login

Which command encrypts all plaintext passwords access on a switch?

service password-encryption

Which is the command to configure a banner to be displayed when connecting to a switch?

banner motd $ Keep Out $

What is the structure of an IPv4 address called?

dotted-decimal format

How is an IPv4 address represented?

four decimal numbers between 0 and 255 separated by periods

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

switch virtual interface (SVI)

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

it affects the operation of the device immediately when modified

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

• the device prompt for this mode ends with the “>” symbol

• only some aspects if the router configuration can be viewed

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

privileged EXEC

What is the default SVI on a Cisco switch?

VLAN1

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 hostname should begin with a letter

• the hostname should be fewer than 64 characters in length

What is the function of the shell in an OS?

it interfaces between the users and the kernel

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

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 and IOS device takes effect as soon as the command is typed correctly and the enter key and been pressed.

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

Ram

• volatile memory and will lose all contents if the router or switch is restarted or shutdown

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

to copy an existing configuration into RAM

Which functionality is provided by DHCP?

automatic assignment of an IP address to each host

• DHCP provides dynamic and automatic IP address assignment to hosts

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

• determining which option, keyword, or argument is available for the entered command

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

NVRAM

• startup config of Cisco router or switch is stored in NVRAM, nonvolatile memory

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

What is another name for the OSI data link layer?

layer 2

The IEEE 802 LAN/MAN data link layer consists of which two sublayers? (Choose two.)

• logical link control

• media access control

What is the responsibility of the MAC sublayer?

provides the method to get the frame on and off the media.

What Layer 2 function does a router perform? (Choose three.)

• accepts a frame from a medium

• de-encapsulates the frame

• re-encapsulates the packet into a new frame

The media access control method used depends on which two criteria?

• media sharing

• topology

Which organization defines standards for the network access layer (i.e., the OSI physical and data link layers)?

IEEE

Which topology displays networking device layer IP addresses?

logical topology

What kind of network would use point-to-point, hub and spoke, or mesh topologies?

WAN

Which LAN topology is a hybrid topology?

extended star

Which duplex communication method is used in WLANs?

half-duplex

Which media access control method is used in legacy Ethernet LANs?

carrier sense multiple access/ collision detection

What does the data link layer add to a Layer 3 packet to create a frame? (Choose two.)

• header

• trailer

What is the function of the last field in a data link layer frame?

to determine the function of the last field in a data link layer frame

Which lists the Layer 2 and Layer 3 address fields in the correct order?

destination, NIC address, source NIC, source IP address, destination IP address

Which of the following are data link layer protocols? (Choose three)

• 802.11

• ethernet

• PPP

What identifier is used at the data link layer to uniquely identify an Ethernet device?

MAC address

What attribute of a NIC would place it at the data link layer of the OSI model?

MAC address

Which two engineering organizations define open standards and protocols that apply to the data link layer? (Choose two.)

• IEEE

• ITU

What is true concerning physical and logical topologies?

logical topologies refer to how a network transfers data between devices

What method is used to manage contention-based access on a wireless network?

CSMA/CA

A technician has been asked to develop a physical topology for a network that provides a high level of redundancy. Which physical topology requires that every node is attached to every other node on the network?

mesh

Which statement describes the half-duplex mode of data transmission?

data that is transmitted over the network flows in one direction at a time

Which is a function of the Logical Link Control (LLC) sublayer?

to identify which network layer protocol is being used

Which data link layer media access control method does Ethernet use with legacy Ethernet hubs?

CSMA/CD

What are the two sublayers of the OSI model data link layer? (Choose two.)

MAC LLC

Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media?

data link

What type of physical topology can be created by connecting all Ethernet cables to a central device?

star

What are two services performed by the data link layer of the OSI model? (Choose two.)

• it accepts Layer 3 packets and encapsulates them into frames

• it provides media access control and preforms error detection

Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary?

the use of full-duplex capable Layer 2 switches

What is the process of converting information into the proper form for transmission?

encoding

Which step of the communication process is concerned with properly identifying the address of the sender and receiver?

formatting

Which three are components of message timing? (Choose three.)

• flow control

• access method

• response timeout

Which delivery method is used to transmit information to one or more end devices, but not all devices on the network?

• multicast

BGP and OSPF are examples of which type of protocol?

routing