Cisco 1-3
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
What term describes a policy that allows network devices to manage the flow of data to give priority to voice and video?
Quality of service
Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.)
RM-3-Switch-2A4 SwBranch799 (start w/ letter, no spaces, end w/ letter/digit, letters/digits/dashes, less than 64 char)
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
What type of network traffic requires QoS?
Video conferencing
Which option creates a secure connection for remote workers?
Virtual Private Network (VPN)
Which option describes malicious code running on user devices?
Virus, worm, or Trojan horse
Which network infrastructure provides access to other networks over a large geographical area, which is often owned and managed by a telecommunications service provider?
WAN
In the show running-config command, which part of the syntax is represented by running-config?
a keyword
Which command or key combination allows a user to return to the previous level in the command hierarchy?
exit
At which OSI layer is data added to a PDU during the encapsulation process?
Application layer
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
Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?
Extranet
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
Having multiple paths to a destination is known as redundancy. This is an example of which characteristic of network architecture?
Fault tolerance
Which type of network topology lets you see which end devices are connected to which intermediary devices and what media is being used?
Logical topology
What term describes a technology that allows devices to connect to the LAN using an electrical outlet?
Powerline networking
What command will prevent all unencrypted passwords from displaying in plain text in a configuration file?
(config)# service password-encryption
What is an advantage of network devices using open standard protocols?
A client host and a server running different operating systems can successfully exchange data
Which statement describes the use of powerline networking technology?
A device connects to an existing home LAN using an adapter and an existing electrical outlet
In which scenario would the use of a WISP be recommended?
A farm in a rural area without wired broadband access
Which device performs the function of determining the path that messages should take through internetworks?
A router
What is an ISP?
An organization that enables individuals and businesses to connect to the Internet
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
What term describes the ability to use personal devices across a business or campus network?
BYOD
Which feature describes using personal tools to access information and communicate across a business or campus network?
BYOD
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 Bring Your Own Device
A web client is receiving a response for a web page from a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to decode the received transmission?
Ethernet, IP, TCP, HTTP
Which two Internet connection options do not require that physical cables be run to the building? (Choose two.)
Cellular and satellite
What term describes a computing model where server software runs on dedicated computers?
Client/server
What term describes storing personal files on servers over the internet to provide access anywhere, anytime, and on any device?
Cloud
Which feature contains options such as Public, Private, Custom and Hybrid?
Cloud computing
What term describes a network owned by one organization that provides safe and secure access to individuals who work for a different organization?
Extranet
What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)
DHCP, DNS, FTP
Which two OSI model layers have the same functionality as a single layer of the TCP/IP model? (Choose two.)
Data link and physical
At which OSI layer is a destination MAC address added to a PDU during the encapsulation process?
Data link layer
At which OSI layer is a source MAC address added to a PDU during the encapsulation process?
Data link layer
Which attack slows down or crashes equipment and programs?
Denial of Service (DoS)
What process involves placing one PDU inside of another PDU?
Encapsulation
Match the requirements of a reliable network with the supporting network architecture. (Not all options are used.)
Fault tolerance- provide redundant links and devices Scalability- expand the network without degrading the service for existing users Security- protect the network from unauthorized access
When data is encoded as pulses of light, which media is being used to transmit the data?
Fiber-optic cable
Which option blocks unauthorized access to your network?
Firewall
An administrator is configuring a switch console port with a password. In what order will the administrator travel through the IOS modes of operation in order to reach the mode in which the configuration commands will be entered? (Not all options are used.)
First mode- user EXEC mode Second mode- privileged EXEC mode Third mode- global configuration mode Final mode- line configuration mode
For the TCP/IP protocol suite, what is the correct order of events when a Telnet message is being prepared to be sent over the network?
First- the Telnet-formatted data is provided to the next layer Second- The TCP header is added Third- The IP header is added Fourth- The Ethernet header is added
What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?
Flow control
Which PDU format is used when bits are received from the network medium by the NIC of a host?
Frame
What are two characteristics of a scalable network? (Choose two.)
Grow in size without impacting existing users & suitable for modular devices that allow for expansion
Which of the following is the name for all computers connected to a network that participate directly in network communication?
Hosts
Match the description to the organization. (Not all options are used.)
ISOC- this organization promotes the open development, evolution, and use of the Internet throughout the world ISO- this organization is the largest developer of international standards in the world for a wide variety of products and services. It is known for it Open Systems Interconnection (OSI) reference model IANA- this organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers
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, and installing antivirus software
Which connections are specialized ports on a networking device that connect to individual networks?
Interface
What layer is responsible for routing messages through an internetwork in the TCP/IP model?
Internet
What term describes a private collection of LANs and WANs that belongs to an organization?
Intranet
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
What function does pressing the Tab key have when entering a command in IOS?
It completes the remainder of a partially typed word in a command
What are three characteristics of an SVI? (Choose three.)
It is not associated with any physical interface on a switch, it provides a means to remotely manage a switch, and it is associated with VLAN1 by default
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?
LAN
Which connection physically connects the end device to the network?
NIC
At which OSI layer is a destination IP address added to a PDU during the encapsulation process?
Network layer
At which OSI layer is a source IP address added to a PDU during the encapsulation process?
Network layer
At which layer of the OSI model would a logical address be added during encapsulation?
Network layer
What term describes a network where one computer can be both client and server?
Peer-to-peer
Which type of network topology lets you see the actual location of intermediary devices and cable installation?
Physical topology
Which feature is being used when connecting a device to the network using an electrical outlet?
Powerline
Which method allows a computer to react accordingly when it requests data from a server and the server takes too long to respond?
Response timeout
Which two devices are intermediary devices? (Choose two)
Routers & Switches
What term describes a type of network used by people who work from home or from a small remote office?
SOHO network
How is SSH different from Telnet?
SSH provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure and sends messages in plaintext
A technician configures a switch with these commands: What is the technician configuring?
SVI
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user EXEC mode?
SW1(config-line)# password lineconin
Match each characteristic to its corresponding Internet connectivity type. (Not all options are used.)
Satellite- not suited for heavily wooded areas Cable- uses coaxial cable as a medium Dialup telephone- typically has very low bandwidth DSL- high bandwidth connection that runs over telephone line
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
When designers follow accepted standards and protocols, which of the four basic characteristics of network architecture is achieved?
Scalability
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?
Security
Confidentiality, integrity, and availability are requirements of which of the four basic characteristics of network architecture?
Security
Which name is assigned to the transport layer PDU?
Segment
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
Segments are sent from the transport layer to the internet layer
Refer to the exhibit. ServerB is attempting to contact HostA. Which two statements correctly identify the addressing that ServerB will generate in the process? (Choose two.)
ServerB will generate a frame with the destination MAC address of RouterB & ServerB will generate a packet with the destination IP address of HostA
When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address?
Subnet mask
Match the definitions to their respective CLI hot keys and shortcuts. (Not all options are used.)
Tab- completes abbreviated commands and parameters Space bar- displays the next screen Up arrow- scrolls backwards through previously entered commands ?- provides context-sensitive help Ctrl-Shift-6- aborts commands such as trace and ping
What type of network must a home user access in order to do online shopping?
The Internet
Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?
The administrator must first enter privileged EXEC mode before issuing the command
What are two characteristics of RAM on a Cisco device? (Choose two.)
The configuration that is actively running on the device is stored in RAM, and the contents of RAM are lost during a power cycle
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
After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command?
The new configuration will be loaded if the switch is restarted
Which interface allows remote management of a Layer 2 switch?
The switch virtual interface
What is a characteristic of multicast messages?
They are sent to a select group of hosts
Which statement is correct about network protocols?
They define how messages are exchanged between the source and the destination
A network administrator enters the service password-encryption command into the configuration mode of a router. What does this command accomplish?
This command prevents someone from viewing the running configuration passwords
Why would a Layer 2 switch need an IP address?
To enable the switch to be managed remotely
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 interrupt the ping process
At which OSI layer is a destination port number added to a PDU during the encapsulation process?
Transport layer
At which OSI layer is a source port number added to a PDU during the encapsulation process?
Transport layer
Match the description with the associated IOS mode. (Not all options are used.)
User EXEC mode- limited number of basic monitoring commands & the first entrance into the CLI of an IOS device Privileged EXEC mode- accesses by entering the enable command & identified by a prompt ending with the # character Global configuration mode- changes made affect the operation of the device as a whole & accessed by entering the configure terminal command
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, and privileged EXEC mode
Which feature uses the same cellular technology as a smart phone?
Wireless broadband
Which option describes a network attack that occurs on the first day that a vulnerability becomes known?
Zero-day or Zero-hour
What command is used to verify the condition of the switch interfaces, including the status of the interfaces and a configured IP address?
show ip interface brief
What two criteria are used to help select a network medium from various network media? (Choose two.)
the distance the selected medium can successfully carry a signal, and the environment where the selected medium is to be installed