CIT Chapter 5 Test
Which well-known port number is used by the DHCP (client) protocol?
68
How many devices can a Bluetooth device connect to simultaneously?
7
Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?
802.11n
IEEE used for POE
802.3af
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
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
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.
What is a characteristic of a WAN?
It connects multiple networks that are geographically separated
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
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
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
Which two devices are commonly powered by PoE? (Choose two.)
access point, IP phone
Which type of connection to the Internet is capable of the fastest transfer rates?
fiber
What is a feature of a dial-up connection?
the use of an analog modem to transmit data over voice telephone lines
What is a common function of a proxy server?
to store frequently accessed web pages on the internal network
When would a printer be considered a network host?
when it is connected to a switch
WMN example
Cellular or WLAN hotspot multihopping
MAN example
City
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
A user needs to access the Internet from home. Which device is needed if a user connects to an ISP through the telephone network?
DSL modem
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
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
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
MAN definition
It is a computer network that connects computers within a metropolitan area.
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.
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
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
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
WMN definition
It is a dynamically self-organized network in which nodes automatically establish and maintain network connectivity.
PAN Definition
It is an interconnection of personal technology devices to communicate over a short distance, which is less than 33 feet or 10 meters or within the range of an individual person, typically using some form of wireless technologies.
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
WAN definition
It is the technology that connects your offices, data centers, cloud applications, and cloud storage together.
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
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
Which satellite service can support up to approximately 100 Mbps with much lower latency than standard satellite?
LEO
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)
WAN example
Over seas
PAN example
Printer, keyboards, etc....
Which two types of signal interference are reduced more by STP than by UTP? (Choose two.)
RFI, EMI
What type of connector is used to connect an analog modem to a telephone line socket?
RJ-11
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
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 source port number that is used by each application.
Which network device would be the most appropriate to provide stateful packet filtering, email filtering, and VPN services?
UTM
Which smart home wireless technology has an open standard that allows up to 232 devices to be connected?
Z-Wave
Which device provides wireless connectivity to users as its primary function?
access point
Which technology is most often used to connect devices to a PAN
bluetooth
Which network device allows administrators to remotely manage many devices through one dashboard interface?
cloud-based network controller
Which type of server would support the SMTP, POP, and IMAP protocols?
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?
fiber optic
Which pairs of wires change termination order between the 568A and 568B standards?
green and orange
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
Which device acts as a termination point for cable runs and keeps cables secure and safely out of walkways?
patch panel
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?
switch
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.)
switch, router, wireless access point
Which type of server would be used to keep a historical record of messages from monitored network devices?
syslog
