Basic Network Connectivity and Communications Exam Answers

CCNA 1 v7 Modules 1 – 3: Basic Network Connectivity and Communications Exam Answers
 18/12/2019  Last Updated on 20/05/2020  CCNA v7 Course #1  34 Comments
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Introduction to Networks (Version 7.00) – Modules 1 – 3: Basic Network Connectivity and Communications Exam
1. 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
2. Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?
· Internet
· intranet
· extranet
· extendednet
3. 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
4. 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.
5. Match the requirements of a reliable network with the supporting network architecture. (Not all options are used.)
6. An employee at a branch office is creating a quote for a customer. In order to do this, the employee needs to access confidential pricing information from internal servers at the Head Office. What type of network would the employee access?
· an intranet
· the Internet
· an extranet
· a local area network
Explanation: Intranet is a term used to refer to a private connection of LANs and WANs that belongs to an organization. An intranet is designed to be accessible only by the organization’s members, employees, or others with authorization.
7. Which statement describes the use of powerline networking technology?
· New “smart” electrical cabling is used to extend an existing home LAN.
· A home LAN is installed without the use of physical cabling.
· A device connects to an existing home LAN using an adapter and an existing electrical outlet.
· Wireless access points use powerline adapters to distribute data through the home LAN.
8. A networking technician is working on the wireless network at a medical clinic. The technician accidentally sets up the wireless network so that patients can see the medical records data of other patients. Which of the four network characteristics has been violated in this situation?
· fault tolerance
· scalability
· security
· Quality of Service (QoS)
· reliability
Explanation: Network security includes protecting the confidentiality of data that is on the network. In this case, because confidential data has been made available to unauthorized users, the security characteristic of the network has failed.
9. Match each characteristic to its corresponding Internet connectivity type. (Not all options are used.)
Explanation: DSL is an always-on, high bandwidth connection that runs over telephone lines. Cable uses the same coaxial cable that carries television signals into the home to provide Internet access. Dialup telephone is much slower than either DSL or cable, but is the least expensive option for home users because it can use any telephone line and a simple modem. Satellite requires a clear line of sight and is affected by trees and other obstructions. None of these typical home options use dedicated leased lines such as T1/E1 and T3/E3.
10. What two criteria are used to help select a network medium from various network media? (Choose two.)
· the types of data that need to be prioritized
· the cost of the end devices utilized in the network
· the distance the selected medium can successfully carry a signal
· the number of intermediate devices installed in the network
· the environment where the selected medium is to be installed
Explanation: Criteria for choosing a network medium are the distance the selected medium can successfully carry a signal, the environment in which the selected medium is to be installed, the amount of data and the speed at which the data must be transmitted, and the cost of the medium and its installation.
11. What type of network traffic requires QoS?
· email
· on-line purchasing
· video conferencing
· wiki
12. A user is implementing security on a small office network. Which two actions would provide the minimum security requirements for this network? (Choose two.)
· implementing a firewall
· installing a wireless network
· installing antivirus software
· implementing an intrusion detection system
· adding a dedicated intrusion prevention device
Explanation: Technically complex security measures such as intrusion prevention and intrusion prevention systems are usually associated with business networks rather than home networks. Installing antivirus software, antimalware software, and implementing a firewall will usually be the minimum requirements for home networks. Installing a home wireless network will not improve network security, and will require further security actions to be taken.
13. Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords. (Choose three.)
· VTY interface
· console interface
· Ethernet interface
· boot IOS mode
· privileged EXEC mode
· router configuration mode
Explanation: Access to the VTY and console interfaces can be restricted using passwords. Out-of-band management of the router can be restricted in both user EXEC and privileged EXEC modes.
14. Which interface allows remote management of a Layer 2 switch?
· the AUX interface
· the console port interface
· the switch virtual interface
· the first Ethernet port interface
Explanation: In a Layer 2 switch, there is a switch virtual interface (SVI) that provides a means for remotely managing the device.
15. What function does pressing the Tab key have when entering a command in IOS?
· It aborts the current command and returns to configuration mode.
· It exits configuration mode and returns to user EXEC mode.
· It moves the cursor to the beginning of the next line.
· It completes the remainder of a partially typed word in a command.
Explanation: Pressing the Tab key after a command has been partially typed will cause the IOS to complete the rest of the command.
16. While trying to solve a network issue, a technician made multiple changes to the current router configuration file. The changes did not solve the problem and were not saved. What action can the technician take to discard the changes and work with the file in NVRAM?
· Issue the reload command without saving the running configuration.
· Delete the vlan.dat file and reboot the device.
· Close and reopen the terminal emulation software.
· Issue the copy startup-config running-config command.
Explanation: The technician does not want to make any mistakes trying to remove all the changes that were done to the running configuration file. The solution is to reboot the router without saving the running configuration. The copy startup-config running-config command does not overwrite the running configuration file with the configuration file stored in NVRAM, but rather it just has an additive effect.
17. An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?
· to restart the