WorksheetsIT Essentials 7.0 Chapter 5
Total questions: 43
Worksheet time: 22mins
A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device? (Choose three.)
web server
switch
router
wireless access point
email server
Which two devices are commonly powered by PoE? (Choose two.)
access point
core switch
IP phone
modular switch
router
Which two types of signal interference are reduced more by STP than by UTP? (Choose two.)
RFI
white noise
MDF
dispersion
EMI
When would a printer be considered a network host?
when it is connected to a switch
when it is connected to a switch
when it is connected to a laptop
when it is connected to a PC
Which technology is most often used to connect devices to a PAN?
coaxial cabling
Bluetooth
fiber optic cabling
IEEE 802.11n wireless
A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?
STP
coaxial
fiber optic
UTP
How many devices can a Bluetooth device connect to simultaneously?
127
7
10
24
5
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame
repeater
hub
switch
router
What is a common function of a proxy server?
to store frequently accessed web pages on the internal network
to control who is permitted to access the internal network
to detect malicious signatures by monitoring traffic that is entering the internal network
to provide access to a shared pool of configurable computing resources
What is a characteristic of a WAN?
It connects multiple networks that are geographically separated.
It spans across a campus or city to enable sharing of regional resources.
It is typically owned and managed by a single home or business
It requires a wireless access point to connect users to the network
What is the correct order of the layers of the TCP/IP model from the top layer to the bottom?
application, session, network, data link, physical
application, internet, network access, transport
network access, transport, internet, application
application, transport, internet, network access
Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?
802.11n
802.11g
802.11b
802.11a
Which pairs of wires change termination order between the 568A and 568B standards?
green and orange
green and brown
blue and brown
brown and orange
Which device provides wireless connectivity to users as its primary function?
switch
router
access point
modem
Which type of connection to the Internet is capable of the fastest transfer rates?
ISDN
POTS
satellite
cable
fiber
A user needs to access the Internet from home. Which device is needed if a user connects to an ISP through the telephone network?
switch
server
DSL modem
wireless access point
Which well-known port number is used by the DHCP (client) protocol?
67
68
20
80
53
A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?
The data flow is being tracked based on the destination MAC address of the technician PC
The data flow is being tracked based on the source port number that is used by each application
The data flow is being tracked based on the source IP address that is used by the PC of the technician.
The data flow is being tracked based on the destination IP address that is used by the PC of the technician
Which type of server would be used to keep a historical record of messages from monitored network devices?
DHCP
DNS
authentication
syslog
Which network device would be the most appropriate to provide stateful packet filtering, email filtering, and VPN services?
router
endpoint management server
proxy server
UTM
TPM
Which smart home wireless technology has an open standard that allows up to 232 devices to be connected?
802.11ac
802.11n
Z-Wave
Zigbee
Which network device allows administrators to remotely manage many devices through one dashboard interface?
cloud-based network controller
Power over Ethernet
switch that supports VLANs
powerline networking
Which internet connection type is an always-on service that uses radio signals sent from a tower to a receiver in a home or business?
line of sight wireless
satellite
hotspot
cellular
Which type of server would support the SMTP, POP, and IMAP protocols?
DHCP
proxy
syslog
A client packet is received by a server. The packet has a destination port number of 21. What service application is the client requesting?
FTP
LDAP
SLP
SNMP
A client packet is received by a server. The packet has a destination port number of 137. What service application is the client requesting?
NetBIOS (NetBT)
SMB/CIFS
HTTPS
SLP
A client packet is received by a server. The packet has a destination port number of 22. What service application is the client requesting?
SSH
SMB/CIFS
HTTPS
SLP
A client packet is received by a server. The packet has a destination port number of 143. What service application is the client requesting?
IMAP
SMB/CIFS
HTTPS
SLP
A client packet is received by a server. The packet has a destination port number of 161. What service application is the client requesting?
SNMP
SMB/CIFS
HTTPS
SLP
A client packet is received by a server. The packet has a destination port number of 23. What service application is the client requesting?
Telnet
SMB/CIFS
HTTPS
SLP
A client packet is received by a server. The packet has a destination port number of 389. What service application is the client requesting?
LDAP
SMB/CIFS
HTTPS
SLP
A client packet is received by a server. The packet has a destination port number of 25. What service application is the client requesting?
SMTP
SMB/CIFS
HTTPS
SLP
A client packet is received by a server. The packet has a destination port number of 53. What service application is the client requesting?
DNS
NetBIOS (NetBT)
POP3
IMAP
A technician is searching through a storage locker and finds a PoE injector. What is the purpose of this device?
It is a device that can be inserted in the middle of a cable run to add power.
It is a device that allows a network administrator to manage many remote networking devices from a central location.
It connects the network of a user to the digital infrastructure of a phone company, providing always-on service.
It connects a home or business network to a company that provides internet connectivity as well as television signals.
A technician is searching through a storage locker and finds a managed switch. What is the purpose of this device?
It connects multiple end devices and can be configured for VLANs and port security.
It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services
It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals
It is placed between two or more networks and protects data and equipment from unauthorized access.
A technician is searching through a storage locker and finds a Powerline networking connector. What is the purpose of this device?
It is a device that uses existing electrical wiring to connect devices and sends data using specific frequencies
It is placed between two or more networks and protects data and equipment from unauthorized access
It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.
It connects networks and forwards traffic to remote networks by using IP addressing information.
A technician is searching through a storage locker and finds a cable modem. What is the purpose of this device?
It connects a home or business network to a company that provides internet connectivity as well as television signals.
It is placed between two or more networks and protects data and equipment from unauthorized access.
It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.
It connects networks and forwards traffic to remote networks by using IP addressing information.
A technician is searching through a storage locker and finds an unmanaged switch. What is the purpose of this device?
It is a device whose sole purpose is to connect end devices and to microsegment a LAN.
It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.
It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.
It is placed between two or more networks and protects data and equipment from unauthorized access.
A technician is searching through a storage locker and finds a DSL modem. What is the purpose of this device?
It connects the network of a user to the digital infrastructure of a phone company, providing always-on service.
It is placed between two or more networks and protects data and equipment from unauthorized access.
It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.
It connects networks and forwards traffic to remote networks by using IP addressing information. It connects networks and forwards traffic to remote networks by using IP addressing information.
A technician is searching through a storage locker and finds an access point. What is the purpose of this device?
It uses radio waves to provide network access to wireless devices.
It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.
It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals
It is placed between two or more networks and protects data and equipment from unauthorized access.
A technician is searching through a storage locker and finds a router. What is the purpose of this device?
It connects networks and forwards traffic to remote networks by using IP addressing information
It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.
It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.
It is placed between two or more networks and protects data and equipment from unauthorized access.
A technician is searching through a storage locker and finds a cloud-based network controller. What is the purpose of this device?
It is a device that allows a network administrator to manage many remote networking devices from a central location.
It transfers small amounts of DC current over Ethernet cables to power low voltage devices such as wireless access points and surveillance cameras.
It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.
It is a device that can be inserted in the middle of a cable run to add power.
A technician is searching through a storage locker and finds a firewall. What is the purpose of this device?
It is placed between two or more networks and protects data and equipment from unauthorized access.
It is a device that can be inserted in the middle of a cable run to add power.
It transfers small amounts of DC current over Ethernet cables to power low voltage devices such as wireless access points and surveillance cameras.
It is a device that uses existing electrical wiring to connect devices and sends data using specific frequencies.
