WorksheetsBasic Network Communication Quiz
Total questions: 142
Worksheet time: 1hrs 11mins
Which of the following is the name for all computers connected to a network that participate directly in network communication?
Servers
Intermediary devices
Hosts
Media
When data is encoded as pulses of light, which media is being used to transmit the data?
Wireless
Fiber-optic cable
Copper cable
Which two devices are intermediary devices? (Choose two)
Hosts
Routers
Servers
Switches
Which connection physically connects the end device to the network?
Port
NIC (Network Interface Card)
Interface
Which connections are specialized ports on a networking device that connect to individual networks?
Port
NIC
Interface
Which type of network topology lets you see which end devices are connected to which intermediary devices and what media is being used?
Physical topology
Logical topology
Which type of network topology lets you see the actual location of intermediary devices and cable installation?
Physical topology
Logical topology
Which network infrastructure provides access to users and end devices in a small geographical area, which is typically a network in a department in an enterprise, a home, or small business?
Extranet
Intranet
LAN
WAN
Which network infrastructure might an organization use to provide secure and safe access to individuals who work for a different organization but require access to the organization's data?
Extranet
Intranet
LAN
WAN
Which network infrastructure provides access to other networks over a large geographical area, which is often owned and managed by a telecommunications service provider?
Extranet
Intranet
LAN
WAN
When designers follow accepted standards and protocols, which of the four basic characteristics of network architecture is achieved?
Fault tolerance
QoS
Security
Scalability
Confidentiality, integrity, and availability are requirements of which of the four basic characteristics of network architecture?
Fault tolerance
Scalability
QoS
Security
With which type of policy can a router manage the flow of data and voice traffic, giving priority to voice communications if the network experiences congestion?
Fault tolerance
Scalability
QoS
Security
Having multiple paths to a destination is known as redundancy. This is an example of which characteristic of network architecture?
Fault tolerance
Scalability
QoS
Security
Which feature is a good conferencing tool to use with others who are located elsewhere in your city, or even in another country?
BYOD
Video communications
Cloud computing
Which feature describes using personal tools to access information and communicate across a business or campus network?
BYOD
Video communications
Cloud computing
Which feature contains options such as Public, Private, Custom, and Hybrid?
BYOD
Video communications
Cloud computing
Which feature is being used when connecting a device to the network using an electrical outlet?
Smart home technology
Powerline
Wireless broadband
Which feature uses the same cellular technology as a smartphone?
Smart home technology
Powerline
Wireless broadband
Which attack slows down or crashes equipment and programs?
Firewall
Virus, worm, or Trojan horse
Zero-day or Zero-hour
Virtual Private Network (VPN)
Denial of Service (DoS)
Which option creates a secure connection for remote workers?
Firewall
Virus, worm, or Trojan horse
Zero-day or Zero-hour
Virtual Private Network (VPN)
Denial of Service (DoS)
Which option blocks unauthorized access to your network?
Firewall
Virus, worm, or Trojan horse
Zero-day or Zero-hour
Virtual Private Network (VPN)
Denial of Service (DoS)
Which option describes a network attack that occurs on the first day that a vulnerability becomes known?
Firewall
Virus, worm, or Trojan horse
Zero-day or Zero-hour
Virtual Private Network (VPN)
Denial of Service (DoS)
Which option describes malicious code running on user devices?
Firewall
Virus, worm, or Trojan horse
Zero-day or Zero-hour
Virtual Private Network (VPN)
Denial of Service (DoS)
During a routine inspection, a technician discovered that software installed on a computer was secretly collecting data about websites visited by its users. Which type of threat is affecting this computer?
DoS attack
Identity theft
Spyware
Zero-day attack
Which term refers to a network that provides secure access to the corporate offices by suppliers, customers, and collaborators?
Internet
Intranet
Extranet
Extendednet
A large corporation has modified its network to allow users to access network resources from their personal laptops and smartphones. Which networking trend does this describe?
Cloud computing
Online collaboration
Bring your own device (BYOD)
Video conferencing
What is an ISP?
It is a standards body that develops cabling and wiring standards for networking.
It is a protocol that establishes how computers within a local network communicate.
It is an organization that enables individuals and businesses to connect to the Internet.
It is a networking device that combines the functionality of several different networking devices in one.
In which scenario would the use of a WISP be recommended?
An Internet cafe in a city
A farm in a rural area without wired broadband access
Any home with multiple wireless devices
An apartment in a building with cable access to the Internet
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?
Reliability
Scalability
Quality of service
Accessibility
A college is building a new dormitory on its campus. Workers accidentally damage a fiber optic cable connecting two 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 demonstrated here?
Quality of service (QoS)
Scalability
Security
Fault tolerance
Integrity
What are two characteristics of a scalable network? (Choose two)
Easily overloaded with increased traffic.
Grows in size without impacting existing users.
Is not as reliable as a small network.
Suitable for modular devices that allow for expansion.
Offers a limited number of applications.
Which device performs the function of determining the path that messages should take through internetworks?
A router
A firewall
A web server
A DSL modem
Which two Internet connection options do not require that physical cables be run to the building? (Choose two)
DSL
Cellular
Satellite
Dialup
Dedicated leased line
What type of network must a home user access in order to do online shopping?
An intranet
The Internet
An extranet
A local area network
How does BYOD change the way in which businesses implement networks?
BYOD requires organizations to purchase laptops rather than desktops.
BYOD users are responsible for their own network security, thus reducing the need for organizational security policies.
BYOD devices are more expensive than devices that are purchased by an organization.
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?
ACL
IPS
VPN
BYOD
What is the Internet?
It is a network based on Ethernet technology.
It provides network access for mobile devices.
It provides connections through interconnected global networks.
It is a private network for an organization with LAN and WAN connections.
Which two functions of end devices on a network? (Choose two)
They originate the data that flows through the network.
They direct data over alternate paths in the event of link failures.
They filter the flow of data to enhance security.
They are the interface between humans and the communication network.
They provide the channel over which the network message travels.
Which IOS mode allows access to all commands and features?
Global configuration mode
Interface subconfiguration mode
Line console subconfiguration mode
Privileged EXEC mode
User EXEC mode
Which IOS mode are you in if the Switch(config)# prompt is displayed?
Global configuration mode
Interface subconfiguration mode
Line console subconfiguration mode
Privileged EXEC mode
User EXEC mode
Which IOS mode are you in if the Switch> prompt is displayed?
Global configuration mode
Interface subconfiguration mode
Line console subconfiguration mode
Privileged EXEC mode
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
disable
enable
end
exit
What is the command to assign the name "Sw-Floor-2" to a switch?
hostname Sw-Floor-2
host name Sw-Floor-2
name Sw-Floor-2
How is the privileged EXEC mode access secured on a switch?
enable class
secret class
enable secret class
service password-encryption
Which command enables password authentication for user EXEC mode access on a switch?
enable secret
login
secret
service password-encryption
Which command encrypts all plaintext passwords on a switch?
enable secret
login
secret
service password-encryption
Which is the command to configure a banner to be displayed when connecting to a switch?
banner $ Keep out $
banner motd $ Keep out $
display $ Keep out $
login banner $ Keep out $
What is the structure of an IPv4 address called?
Dotted-binary format
Dotted-decimal format
Dotted-hexadecimal format
How is an IPv4 address represented?
Four binary numbers between 0 and 1 separated by colons.
Four decimal numbers between 0 and 255 separated by periods.
Thirty-two hexadecimal numbers separated by colons.
Thirty-two hexadecimal numbers separated by periods.
What type of interface has no physical port associated with it?
Console
Ethernet
Serial
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.
It is stored in NVRAM.
It should be deleted using the erase running-config command.
It is automatically saved when the router reboots.
Which two statements are true regarding the user EXEC mode? (Choose two)
All router commands are available.
Global configuration mode can be accessed by entering the enable command.
The device prompt for this mode ends with the '>' symbol.
Interfaces and routing protocols can be configured.
Only some aspects of the router configuration can be viewed.
Which type of access is secured on a Cisco router or switch with the enable secret command?
Virtual terminal
Privileged EXEC
AUX port
Console line
What is the default SVI on a Cisco switch?
VLAN1
VLAN99
VLAN100
VLAN999
When a hostname is configured through the Cisco CLI, which three naming conventions are part of the guidelines? (Choose three)
The hostname should be fewer than 64 characters in length
The hostname should be written in all lower case characters
The hostname should contain no spaces
The hostname should end with a special character
The hostname should begin with a letter
What is the function of the shell in an OS?
It interacts with the device hardware.
It interfaces between the users and the kernel.
It provides dedicated firewall services.
It provides the intrusion protection services for the device.
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?
Global configuration mode
Setup mode
Privileged EXEC mode
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?
Copy the running configuration to the startup configuration file.
Copy the information in the startup configuration file to the running configuration.
Reload the device and type yes when prompted to save the configuration.
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?
ROM
Flash
NVRAM
RAM
Why would a technician enter the command copy startup-config running-config?
To remove all configurations from the switch
To save an active configuration to NVRAM
To copy an existing configuration into RAM
To make a changed configuration the new startup configuration
Which functionality is provided by DHCP?
Automatic assignment of an IP address to each host
Remote switch management
Translation of IP addresses to domain names
End-to-end connectivity test
Which two functions are provided to users by the context-sensitive help feature of the Cisco IOS CLI? (Choose two)
Providing an error message when a wrong command is submitted
Displaying a list of all available commands within the current mode
Allowing the user to complete the remainder of an abbreviated command with the TAB key
Determining which option, keyword, or argument is available for the entered command *
Selecting the best command to accomplish a task
Which memory location on a Cisco router or switch stores the startup configuration file?
RAM
ROM
NVRAM
Flash
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
10.0.0.0
10.1.100.32
10.1.100.0
What is the process of converting information into the proper form for transmission?
Formatting
Encoding
Encapsulation
Which step of the communication process is concerned with properly identifying the address of the sender and receiver?
Formatting
Encoding
Encapsulation
Which three are components of message timing? (Choose three.)
Flow control
Sequence numbers
Access method
Retransmit time
Response timeout
Which delivery method is used to transmit information to one or more end devices, but not all devices on the network?
Unicast
Multicast
Broadcast
BGP and OSPF are examples of which type of protocol?
Network communication
Network security
Routing
Service discovery
Which two protocols are service discovery protocols? (Choose two.)
DNS
TCP
SSH
DHCP
What is the purpose of the sequencing function in network communication?
To uniquely label transmitted segments of data for proper reassembly by the receiver
To determine if data is corrupted during transmission
To ensure data flows at an efficient rate between sender and receiver
To guarantee delivery of data
This protocol is responsible for guaranteeing the reliable delivery of information.
TCP
IP
HTTP
Ethernet
UDP and TCP belong to which layer of the TCP/IP protocol?
Application
Transport
Internet
Network access
Which two protocols belong in the TCP/IP model application layer? (Choose two.)
EIGRP
DNS
OSPF
ICMP
DHCP
Which protocol operates at the network access layer of the TCP/IP model?
HTTP
IP
DNS
Ethernet
Which of the following are protocols that provide feedback from the destination host to the source host regarding errors in packet delivery? (Choose two.)
TCP
ICMPv4
IPv6
IPv4
UDP
A device receives a data link frame with data and processes and removes the Ethernet information. What information would be the next to be processed by the receiving device?
HTTP at the application layer
HTML at the application layer
IP at the internet layer
UDP at the internet layer
TCP at the transport layer
Which services are provided by the internet layer of the TCP/IP protocol suite? (Choose three.)
Messaging
File Transfer
Internet Protocol
Routing Protocols
Address Resolution
True or false. Standards organizations are usually vendor-neutral.
True
False
True or false. Standards organizations are usually vendor-neutral.
True
False
This standards organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones.
Internet Society (ISOC)
Internet Engineering Task Force (IETF)
Internet Architecture Board (IAB)
Internet Research Task Force (IRTF)
This standards organization is responsible for IP address allocation and domain name management.
Internet Society (ISOC)
Internet Engineering Task Force (IETF)
Internet Architecture Board (IAB)
Internet Assigned Numbers Authority (IANA)
What types of standards are developed by the Electronics Industries Alliance (EIA)?
Electric wiring and connectors
Radio equipment and cell towers
Video compression and broadband communications
Voice over IP (VoIP) and satellite communications
What is the process of dividing a large data stream into smaller pieces prior to transmission?
Sequencing
Duplexing
Multiplexing
Segmentation
What is the PDU associated with the transport layer?
Segment
Packet
Bits
Frame
Which protocol stack layer encapsulates data into frames?
Data link
Transport
Network
Application
What is the name of the process of adding protocol information to data as it moves down the protocol stack?
De-encapsulation
Sequencing
Segmentation
Encapsulation
True or false? Frames exchanged between devices in different IP networks must be forwarded to a default gateway.
True
False
True or false? The right-most part of an IP address is used to identify the network that a device belongs to.
True
False
What is used to determine the network portion of an IPv4 address?
Subnet mask
MAC address
Right-most part of the IP address
Left-most part of the MAC address
Which of the following statements are true regarding network layer and data link layer addresses? (Choose three.)
Data link layer addresses are logical and network layer addresses are physical.
Network layer addresses are expressed as 12 hexadecimal digits and data link layer addresses are decimal.
Network layer addresses are either 32 or 128 bits in length.
Data link layer addresses are physical and network layer addresses are logical.
Network layer addresses are logical and data link addresses are expressed as 12 hexadecimal digits.
What is the order of the two addresses in the data link frame?
Source MAC, destination MAC
Destination MAC, source IP
Destination IP, source IP
Destination MAC, source MAC
Source IP, destination IP
True or False? Data Link addresses are physical so they never change in the data link frame from source to destination.
True
False
Which three acronyms/initialisms represent standards organizations? (Choose three.)
OSI
TCP/IP
IANA
IEEE
IETF
What type of communication will send a message to all devices on a local area network?
Broadcast
Multicast
Unicast
Allcast
In computer communication, what is the purpose of message encoding?
To convert information to the appropriate form for transmission
To interpret information
To break large messages into smaller frames
To negotiate correct timing for successful communication
Which message delivery option is used when all devices need to receive the same message simultaneously?
Duplex
Unicast
Multicast
Broadcast
What are two benefits of using a layered network model? (Choose two.)
It assists in protocol design
It speeds up packet delivery
It prevents designers from creating their own model
It prevents technology in one layer from affecting other layers *
It ensures a device at one layer can function at the next higher layer
What is the purpose of protocols in data communications?
Specifying the bandwidth of the channel or medium for each type of communication
Specifying the device operating systems that will support the communication
Providing the rules required for a specific type of communication to occur
Dictating the content of the message sent during communication
Which logical address is used for delivery of data to a remote network?
Destination MAC address
Destination IP address
Destination port number
Source MAC address
Source IP address
What is the general term that is used to describe a piece of data at any layer of a networking model?
Frame
Packet
Protocol data unit
Segment
Which two protocols function at the internet layer? (Choose two.)
POP
BOOTP
ICMP
IP
PPP
Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?
Application
Presentation
Session
Transport
Network
Which type of communication will send a message to a group of host destinations simultaneously?
Broadcast
Multicast
Unicast
Anycast
What process is used to receive transmitted data and convert it into a readable message?
Access control
Decoding
Encapsulation
Flow control
What is done to an IP packet before it is transmitted over the physical medium?
It is tagged with information guaranteeing reliable delivery.
It is segmented into smaller individual pieces.
It is encapsulated into a TCP segment.
It is encapsulated in a Layer 2 frame.
What process is used to place one message inside another message for transfer from the source to the destination?
Access control
Decoding
Encapsulation
Flow control
A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?
HTTP, IP, TCP, Ethernet
HTTP, TCP, IP, Ethernet
Ethernet, TCP, IP, HTTP
Ethernet, IP, TCP, HTTP
What protocol stack is used to prepare the request for transmission?
HTTP, IP, TCP, Ethernet
HTTP, TCP, IP, Ethernet
Ethernet, TCP, IP, HTTP
Ethernet, IP, TCP, HTTP
True or false? The physical layer is only concerned with wired network connections.
True
False
True or false? When a frame is encoded by the physical layer, all bits are sent over the media at the same time.
True
False
The physical layer of the receiving device passes bits up to which higher level layer?
Application
Presentation
Network
Data link
What PDU is received by the physical layer for encoding and transmission?
Frame
Segment
Packet
Which media uses patterns of microwaves to represent bits?
Copper
Wireless
Fiber-optic
Which media uses patterns of light to represent bits?
Copper
Wireless
Fiber-optic
Which media uses electrical pulses to represent bits?
Copper
Wireless
Fiber-optic
Which of these is the name for the capacity of a medium to carry data?
Bandwidth
Throughput
Goodput
Which of these is a measure of the transfer of bits across the media?
Bandwidth
Throughput
Goodput
Which of the following attaches antennas to wireless devices? It can also be bundled with fiber-optic cabling for two-way data transmission.
UTP
STP
Coaxial
Which of the following counters EMI and RFI by using shielding techniques and special connectors?
UTP
STP
Coaxial
Which of the following is the most common network media?
UTP
STP
Coaxial
Which of the following terminates with BNC, N type and F type connectors?
UTP
STP
Coaxial
Which of the following fiber-optic cable types can help data travel approximately 500 meters?
Multimode
Single-mode
Which of the following fiber-optic cable types use light emitting diodes (LEDs) as a data light source transmitter?
Multimode
Single-mode
Which of the following fiber-optic cable types use lasers in a single stream as a data light source transmitter?
Multimode
Single-mode
Which of the following fiber-optic cable types is used to connect long-distance telephony and cable TV applications?
Multimode
Single-mode
Which of the following fiber-optic cable types can travel approximately 100 km?
Multimode
Single-mode
Which of the following fiber-optic cable types is used within a campus network?
Multimode
Single-mode
True or false. Wireless is not well suited for enterprise networks.
True
False
True or false. Wireless LANs operate in full-duplex allowing all devices to send or receive data at the same time so the number of users does not impact performance.
True
False
Which of the following wireless standards is best suited for industrial and IoT environments?
Zigbee
WiMAX
Wi-Fi
Bluetooth
Which of the following wireless standards is used for Personal Area Networks (PANs) and allows devices to communicate over distances of 1 to 100 meters?
Zigbee
WiMAX
Wi-Fi
Bluetooth
A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?
Presentation layer
Network layer
Physical layer
Data link layer
What type of cable is used to connect a workstation serial port to a Cisco router console port?
Crossover
Rollover
Straight-through
Coaxial
Why are two strands of fiber used for a single fiber optic connection?
The two strands allow the data to travel for longer distances without degrading.
They prevent crosstalk from causing interference on the connection.
They increase the speed at which the data can travel.
They allow for full-duplex connectivity.
Which procedure is used to reduce the effect of crosstalk in copper cables?
Requiring proper grounding connections
Twisting opposing circuit wire pairs together
Wrapping the bundle of wires with metallic shielding
Designing a cable infrastructure to avoid crosstalk interference
Avoiding sharp bends during installation
What is one advantage of using fiber optic cabling rather than copper cabling?
It is usually cheaper than copper cabling.
It is able to be installed around sharp bends.
It is easier to terminate and install than copper cabling.
It is able to carry signals much farther than copper cabling.
A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?
The end-user device only has an Ethernet NIC.
The end-user device requires a dedicated connection because of performance requirements.
The end-user device needs mobility when connecting to the network.
The end-user device area has a high concentration of RFI.
Which type of UTP cable is used to connect a PC to a switch port?
Console
Rollover
Crossover
Straight-through
What is the definition of bandwidth?
The speed of bits across the media over a given period of time
The speed at which bits travel on the network
The amount of data that can flow from one place to another in a given amount of time
The measure of usable data transferred over a given period of time
Which statement correctly describes frame encoding?
It uses the characteristic of one wave to modify another wave.
It transmits data signals along with a clock signal which occurs at evenly spaced time durations.
