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WorksheetsСеть 1
Total questions: 35
Worksheet time: 6hrs 50mins
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?
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 smart phones. Which networking trend does this describe?
Cloud computing
Online collaboration
Bring your own device
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 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?
Quality of service (QoS)
Scalability
Security
Fault tolerance
Integrity
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
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 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 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
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 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 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 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 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
