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WorksheetsModules 1-3
Total questions: 73
Worksheet time: 37mins
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 smartphones. 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.
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
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.
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
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
What type of network traffic requires QoS?
on-line purchasing
video conferencing
wiki
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
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.)
console interface
privileged EXEC mode
Ethernet interface
boot IOS mode
VTY interface
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
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.
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.
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 ping process
to interrupt the ping process
to exit to a different configuration mode
to allow the user to complete the command
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?
letmein
secretin
lineconin
linevtyin
A technician configures a switch with these commands: SwitchA(config)# interface vlan 1
SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0
SwitchA(config-if)# no shutdown
What is the technician configuring?
Telnet access
SVI
password encryption
physical switchport access
Which command or key combination allows a user to return to the previous level in the command hierarchy?
end
exit
Ctrl-Z
Ctrl-C
What are two characteristics of RAM on a Cisco device? (Choose two.)
RAM provides nonvolatile storage.
The configuration that is actively running on the device is stored in RAM.
The contents of RAM are lost during a power cycle.
RAM is a component in Cisco switches but not in Cisco routers.
RAM is able to store multiple versions of IOS and configuration files.
Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.)
Branch2!
RM-3-Switch-2A4
Floor(15)
HO Floor 17
SwBranch799
How is SSH different from Telnet?
SSH makes connections over the network, whereas Telnet is for out-of-band access.
SSH provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure and sends messages in plaintext.
SSH requires the use of the PuTTY terminal emulation program. Tera Term must be used to connect to devices through the use of Telnet.
SSH must be configured over an active network connection, whereas Telnet is used to connect to a device from a console connection.
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
What are three characteristics of an IP address? (Choose three.)
An IP address is 16 bits in length.
An IP address is divided into two parts: the network part and the host part.
An IP address must be unique within its local network.
An IP address can be dynamically assigned or statically assigned.
An IP address is used to define a specific location within a network.
What information is contained in the ARP cache?
a list of MAC addresses for devices on the network
a mapping of IP addresses to MAC addresses
a mapping of IP addresses to routing protocols
a list of device hostnames
Which statement describes a function of a switch?
It forwards frames to all devices on the network.
It broadcasts messages to all devices on the network.
It filters and forwards traffic based on MAC addresses.
It connects devices in different networks and routes traffic between them.
Which two statements describe a benefit of using a router? (Choose two.)
Routers can create VLANs to improve performance on the network.
Routers can connect multiple networks and route packets between them.
Routers can filter and forward traffic based on MAC addresses.
Routers can separate broadcast domains.
Routers can provide a secure connection to a private network.
A network administrator is reviewing the status of a switch. Which command would provide the administrator with the MAC address table?
show ip route
show ip interface brief
show mac address-table
show running-config
A network administrator is troubleshooting a switch that is not forwarding frames. What command can the administrator use to determine if the switch is operating?
show interfaces status
show ip interface brief
show version
show running-config
Which command would display the list of interfaces along with their status and IP configurations on a Cisco device?
ipconfig
ping
traceroute
show ip interface brief
Which key is used to display all available commands that start with a certain character sequence while using a Cisco device in command-line mode?
?
Up Arrow
Space bar
Ctrl-C
Tab
What component must match between the configurations of two connecting Cisco devices for them to properly interpret commands?
the command
a keyword
a variable
a prompt
What does the "service password-encryption" command accomplish on a Cisco device?
This command encrypts passwords as they are transmitted across serial WAN links.
This command prevents someone from viewing the running configuration passwords.
This command enables a strong encryption algorithm for the enable secret password command.
This command automatically encrypts passwords in configuration files that are currently stored in NVRAM.
This command provides an exclusive encrypted password for external service personnel who are required to do router maintenance.
Which term describes the process of managing data transmission to prevent bottlenecks or collisions?
encapsulation
flow control
access method
response timeout
What is the correct order of data encapsulation in the OSI model when data is sent from one host to another?
Data is sent from the internet layer to the network access layer.
Packets are sent from the network access layer to the transport layer.
Segments are sent from the transport layer to the internet layer.
Frames are sent from the network access layer to the internet layer.
Which protocols are commonly used for automatic configuration of IP addresses on a host device?
NAT
ARP
FTP
DNS
DHCP
In networking, at what layer does the segmentation of data occur?
bits
data
frame
packet
segment
At which layer of the OSI model is a subnet mask necessary to divide the network into subnets?
DNS server address
subnet mask
default gateway
DHCP server address
Which term refers to combining multiple data streams into a single stream?
encapsulation
encoding
segmentation
flow control
Which layer of the OSI model is responsible for end-to-end communication and error handling in the transmission of data packets?
internet
transport
network access
session
What is the function of the presentation layer in terms of data preparation for network transmission?
The Telnet-formatted data is provided to the next layer.
The TCP header is added.
The IP header is added.
The Ethernet header is added.
What is the smallest unit of data that travels across a network?
file
frame
packet
segment
When a data packet is sent from ServerB to HostA through multiple routers, what is the destination address in the packet's encapsulation?
ServerB will generate a packet with the destination IP address of RouterA.
ServerB will generate a frame with the destination MAC address of SwitchB.
ServerB will generate a packet with the destination IP address of RouterB.
ServerB will generate a frame with the destination MAC address of RouterA.
ServerB will generate a packet with the destination IP address of HostA.
Which OSI model layer is responsible for data flow between devices, providing reliable data transfer?
encapsulation
flow control
access method
response timeout
In a TCP/IP network, which protocol stack layer includes both the TCP and HTTP protocols for data transmission?
Ethernet, IP, TCP, HTTP
HTTP, TCP, IP, Ethernet
Ethernet, TCP, IP, HTTP
HTTP, Ethernet, IP, TCP
Which layers of the OSI model are responsible for defining logical addressing and data transport functionalities?
data link
network
physical
session
transport
Which layer of the OSI model is primarily responsible for logical addressing and the routing of messages across a network?
physical layer
data link layer
network layer
transport layer
Which statements describe multicast messages?
They are sent to a select group of hosts.
They are sent to all hosts on a network.
They must be acknowledged.
They are sent to a single destination.
What is the main purpose of standard networking protocols?
Network protocols define the type of hardware that is used and how it is mounted in racks.
They define how messages are exchanged between the source and the destination.
They all function in the network access layer of TCP/IP.
They are only required for exchange of messages between devices on remote networks.
How does the use of network protocols enable communication between different devices on the Internet?
Network communications is confined to data transfers between devices from the same vendor.
A client host and a server running different operating systems can successfully exchange data.
Internet access can be controlled by a single ISP in each market.
Competition and innovation are limited to specific types of products.
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 is the IP address of the switch virtual interface (SVI) on Switch0?
192.168.5.10
192.168.10.5
192.168.10.1
192.168.5.0
Why would a Layer 2 switch need an IP address?
to enable the switch to send broadcast frames to attached PCs
to enable the switch to function as a default gateway
to enable the switch to be managed remotely
to enable the switch to receive frames from attached PCs
What is the problem when an administrator tries to configure the switch?
The entire command, configure terminal, must be used.
The administrator is already in global configuration mode.
The administrator must first enter privileged EXEC mode before issuing the command.
The administrator must connect via the console port to access global configuration mode.
What term describes a network owned by one organization that provides safe and secure access to individuals who work for a different organization?
extranet
cloud
BYOD
quality of service
What term describes storing personal files on servers over the internet to provide access anywhere, anytime, and on any device?
cloud
BYOD
quality of service
converged network
What term describes a network where one computer can be both client and server?
peer-to-peer
cloud
BYOD
quality of service
What term describes a type of network used by people who work from home or from a small remote office?
SOHO network
BYOD
quality of service
converged network
What term describes a computing model where server software runs on dedicated computers?
client/server
internet
intranet
extranet
What term describes a technology that allows devices to connect to the LAN using an electrical outlet?
powerline networking
internet
intranet
extranet
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
internet
intranet
extranet
What term describes a private collection of LANs and WANs that belongs to an organization?
intranet
internet
extranet
peer-to-peer
What term describes the ability to use personal devices across a business or campus network?
BYOD
internet
intranet
extranet
At which OSI layer is a source IP address added to a PDU during the encapsulation process?
network layer
data link layer
transport layer
application layer
At which OSI layer is a destination port number added to a PDU during the encapsulation process?
transport layer
data link layer
network layer
application layer
At which OSI layer is data added to a PDU during the encapsulation process?
application layer
data link layer
network layer
transport layer
At which OSI layer is a source IP address added to a PDU during the encapsulation process?
network layer
data link layer
application layer
presentation layer
Which of the following is the name for all computers connected to a network that participate directly in network communication?
Servers
Intermediary device
Host
media
At which OSI layer is a destination IP address added to a PDU during the encapsulation process?
network layer
application layer
transport layer
presentation layer
At which OSI layer is a source MAC address added to a PDU during the encapsulation process?
data link layer
application layer
transport layer
presentation layer
At which OSI layer is a source port number added to a PDU during the encapsulation process?
transport layer
application layer
network layer
presentation layer
data link layer
At which OSI layer is a destination MAC address added to a PDU during the encapsulation process?
data link layer
transport layer
application layer
network layer
When data is encoded as pulses of light, which media is being used to transmit the data?
Wireless
Fire optic cable
Copper cable
Which two devices are intermediary devices? (Choose two)
Host
Router
Switch
Servers
