Networking Flashcards
What is the bit length of IPv6 addresses?
128
How does communication occur in simplex mode?
Two separate channels are used for transmitting and receiving the signal
Which command releases the TCP/IP configuration information obtained from a DHCP server?
IPCONFIG /RELEASE
Which device is used to extend the range of an existing wireless network?
wireless repeaters
How many IP addresses does a router have?
two
One for each network that it is connecting
What port is used by HTTPS?
443
What does APIPA stand for?
Automatic Private Internet Protocol Addressing
What does IPSec stand for?
Internet Protocol Security
What does a cable stripper do?
Removes the covering over the wires
What ports are used by SMB (Server message block)
137, 138, 139, 445
Which subnet mask is used by Windows while using APIPA?
255.255.0.0
Which parameter of the IPCONFIG command exhibits contents of the DNS client resolver cache?
/DISPLAYDNS
What does DMZ stand for?
demilitarized zone
What are the results of typing the netstat command?
A listing of all open ports
What does ADSL mean?
Asymmetrical Digital Subscriber Line
What is the maximum transmission speed supported by the 802.11b standard?
11 Mbps
Which command is used to trace the IP traffic route through intermediate routers and system network interfaces, identifying the full path traveled from source to destination?
TRACERT
What does SNMP stand for?
Simple Network Management Protocol
Which command switch should you use with IPCONFIG to display other available switches and their description?
/?
Which devices are used to connect workstations in a 100 BaseT network?
routers, switches, and hubs
What is the decimal range of values in each octet of an IPv4 address?
0 to 255
Which parameter of the ping command will display the host name of the IP address that you are pinging, if successful?
-a
What are the indoor and outdoor maximum ranges for 802.11n?
- indoors 230 feet
- outdoors 820 feet
What are the three most popular connectors available for fiber optic cabling?
ST, SC, LC
At what band does Bluetooth operate?
2.4 Ghz
What three Wi-Fi networking standards operate within the 2.4 GHz radio frequency band?
802.11 b, g, n
Which parameter of the IPCONFIG command reorganizes contents of the DNS client resolver cache?
/flushdns
What does ARP stand for?
Address resolution protocol
What are the three private IP address ranges?
- 10.0.0 to 255.255.255
- 172.16.0.0 to 172.31.255.255
- 192.168.0.0 to 192.168.255.255
What is the data rate speed for 802.11b?
11 mbps
What is fe80::200:f8ff:fe21:67cf an example of?
Ipv6 address
What does DSL stand for?
Digital subscriber line
When accessing the internet by a cable modem, who decides on whether to use a static or dynamic IP on the computer?
ISP (internet service provider)
What does DHCP stand for?
Dynamic Host Configuration Protocol
What radio frequency does IEEE 802.11a operate on?
5.0 GHz
What is the purpose of PoE?
Power over Ethernet, allows an ethernet connection to function as a network and power supply
What must be installed in a computer to connect the computer to a network?
A network adapter
What is the default mask for class B networks?
255.255.0.0
Which hardware device can connect similar networks and can separate the network traffic on each segment?
bridge
What hardware device can connect dissimilar networks and can operate at different layers of the OSI (open systems interconnection) model?
gateway
What does AP stand for?
Access Point
192.168.0.1 is reserved for what?
Private network
What device(s) should you use to isolate broadcast traffic on your LAN to certain segments?
- Router
- Switch
Which four data rates are defined for operation over twisted pair and optical fiber cables for Ethernet networks?
- 10 Mbps for 10BaseT
- 100 Mbps for Fast Ethernet
- 1000 Mbps for Gigabet Ethernet
- 10 Gbps for 10 Gigabit Ethernet
What is the IP address range that can be assigned in class B networks?
128.0.0 to 191.255.255.255
What does VPN stand for?
Virtual private network
What authentication is required with WPA?
802.1X authentication
Which service allows DHCP clients to obtain IP addresses even if the DHCP server is down?
APIA (automatic private IP addressing)
Which lower layer protocol provides communication between computers or other network devices by using unique global addressing?
IP (internet protocol)
What does DNS stand for?
Domain Name System
What is AD-4F-C1-A9-12-CB an example of?
MAC (media access control) address
Where can you set a static address on a Windows XP computer?
The Internet Protocol (TCP/IP) Properties dialog box
Which hardware device routes data from a LAN to a phone line or other network connection?
router
What TCP port is used by POP3 (post office protocol)
110
Into how many channels does the Bluetooth protocol divide its operating band?
79
Which transport layer protocol provides an interface between IP and upper layer processes?
UDP (user datagram protocol)
Which type of port is included on a dial up modem?
RJ-11
What is latency in a network?
The amount of delay a network can experience
To which port on the router or switch should you connect a computer to access the internet?
LAN (local area network) port
Which two wireless networks provide a data throughput of 54 mbps and uses orthogonal frequency division multiplexing (OFDM) encoding?
802.11 a and g
Which connector is used for 10BaseT network cables?
RJ-45
Which service translates domain names into numeric IP addresses?
DNS (domain name system)
What port does telnet use by default?
23
Which wireless mode allows devices to connect without the need of a wireless router?
ad hoc (peer to peer)
Which two details can you use to access a router’s configuration page through a Web Browser?
- Router IP address
- Router name
Which devices are used to forward packets between multiple networks?
- routers
- switches
Which protocol is used to transmit data securely between a FTP client and a FTP server?
SFTP (secure file transfer protocol) or FTPS (file transfer protocol security)
SFTP uses SSH
FTPS uses SSL
Which service determines the IP address associated with the NetBIOS name of the computer?
WINS (Windows Internet Naming Service)
What is the maximum indoor and outdoor distance for 802.11a?
- indoors: 150 feet
- outdoors: 390 feet
How do you update the firmware on your wireless router?
Connect the router with your browser from a connected computer and download the update
What is the default mask for class C networks?
255.255.255.0
Which IPCONFIG switch displays the current IP configuration on a workstation?
/all
Which device is a combination of a bridge and a router?
brouter
… i guess
Which file in Windows contains static DNS mappings?
HOSTS file
Which command is used to find the DHCP server that gave your computer an address?
ipconfig /all
How does communication occur in full duplex mode?
You can transmit and receive the signal on the same channel at the same time
Which parameter of the ping command will cause the command to continue sending messages until interrupted?
-t
What is the maximum indoor and outdoor distance for 802.11b?
- indoor: 150 feet
- outdoor: 460 feet
Which command is used on a computer running XP to display the DNS server that the computer is using?
ipconfig /all
What is the maximum transmission speed of 802.11g?
54 Mbps
How can you ensure our SSID is not seen by computers in other offices?
Disable SSID broadcast
Which radio frequency is used to operate the 802.11 b and g wireless networks?
2.4 Ghz
Which command should you use to access the router configuration from the command prompt?
telnet
Which Windows operating systems include the ipconfig command line utility?
All Windows
What is the maximum length of RG-58 ThinNet coaxial cable?
185 meters (607 feet)
Which parameter of the ipconfig command starts manual dynamic registration for DNS names and IP addresses?
/registerdns
What term, apart from latency, is used for a delay that occurs in satellite connections?
propagation delay
Which new version of the IP protocol has expanded the range of IP addresses from 32 to 128 bits?
IPv6
What is the maximum transmission distance for Bluetooth 2.0 devices?
10 meters or 33 feet
What is the purpose of a punchdown tool?
Attaching cable to a punchdown block or patch panels
Which service allows Windows workstations to access UNIX servers by name?
DNS (domain name system)
What is the maximum distance Bluetooth technology can transmit data?
Class 1: 100 meters
Class 2: 10 meters
Class 3: 1 meter
Which type of IP address is obtained by the network adapter when the Internet Connection Sharing (ICS) is enabled on a computer?
static
Which transmission cable has a transmission range up to 100 meters or 328 feet?
UTP or STP
What radio frequency does 802.11g operate?
2.4 GHz
What is MAC filtering used for?
To prevent unauthorized devices from connecting to a network
Why should you configure your XP computer with an IP address in the alternate configuration of TCP/IP properties?
To ensure you will have an IP address if your computer does not receive one from DHCP
Which type of network contains a computer, cell phone, pda, and operates using bluetooth, infrared, USB, or FireWire technology?
PAN (personal area network)
What is the transmission distance supported by single mode fiber optic cable?
20 miles
Which cable is used to connect workstations directly without using a hub or switch?
crossover cable
What is the purpose of the Zero configuration service?
Automatically connects to a preferred wireless network when that network is in range
Which serial bus interface standard offers high speed communications and isochronous real time data services for digital audio and video?
Firewire, aka i.Link ir IEEE 1394
Which IEEE standard provides an over the air interface between wireless devices such as computers, printers, or routers?
IEEE 802.11
What is the maximum indoor and outdoor distance for 802.11g?
- Indoor 125 feet
- Outdoor 460 feet
Which parameter of the IPCONFIG command restores the DHCP configuration for adapters?
/renew
What does the use of WPA-Enterprise require?
The use of a RADIUS authentication server
On which protocol does an attacker attack by taking advantage of the security flaws during network implementation to carry out LAN attacks?
TCP/IP (Transmission control protocol/internet protocol)
Which dial up internet connections use a standard RJ-11 telephone jack to establish a connection between modem and ISP?
- DSL (digital subscriber line)
- analog modem connections
Which TCP port is used by SMTP (Simple mail transfer protocol)
25
What port is used by AFP (apple filing protocol)
427 and 548
Which wireless mode requires that a wireless router is used?
Infrastructure mode
What does a cable rated as “plenum” indicate about the cable?
It will not produce toxic gas when it burns
What is the maximum length of the RG-8 ThickNet coaxial cable?
500 meters (1,640 feet)
By default, which port does the Domain Name System (DNS) use?
53
What is the IP address range that can be assigned in Class C networks?
192.0.0 through 233.255.255.255
What does WEP stand for?
Wired equivalent privacy
Which internet connection has a line of sight requirement?
Satellite
Which type of radio network is made up of radio cells served by a fixed transmitter, known as base station?
Cellular network
Which component do you install in a computer to establish a physical connection to the network media?
Network Interface Card (NIC)
Which protocol resolves IP address to Media Access Control (MAC) address
Address Resolution Protocol (ARP)
Which Wi-Fi networking standards operate in the 5GHz frequency?
a, ac, n
Which protocol is used for transferring files from one computer to another?
File Transfer Protocol
Which type of topology is used to connect devices with each other by using Bluetooth?
Point to point
What do the client side DNS settings include?
Primary and secondary DNS server
Which standard allows devices such as keyboard, printers, modems, or mouse, to communicate wirelessly with other devices in proximity?
Bluetooth
How does communication occur in half duplex mode?
A single communication channel is used for both transmitting and receiving
How many network cards are required in each computer when Internet access is shared via a router?
One network card in each computer
What is the maximum transmission speed of a Category 5e cable?
1000 Mbps or 1 Gbps
What is the main difference in the physical composition of UTP and STP cables?
Foil or mesh shielding (STP)
What is the transmission distance supported by multi mode fiber optic cable?
3000 feet
What does WPA stand for?
Wireless Protected Access
What is the maximum transmission speed of a Category 6 cable?
10 Gbps
What port does Secure Shell (SSH) use by default?
22
SS - 22
Which radio frequency band is used by microwaves and cordless telephones?
2.4 Ghz
Which technology allows voice data to be transmitted over a company’s computer network?
Voice over IP (VoIP)
What is the IP address range that can be assigned in Class A networks?
1.0.0.0 through 126.255.255.255
Which command is used to display the routes in the routing table on a router?
ROUTE
By default, which port is used by Remote Desktop Protocol (RDP)
3389
Which type of wireless network interference is caused by competing wireless signals?
Radio frequency interference (RFI)
What is the result of executing IPCONFIG from the Run dialog box?
A black window appears and then disappears automatically
Which type of wireless network interference is caused by electrical devices, such as fluorescent lights?
Electromagnetic interference (EMI)
What should you configure when setting up a wireless connection?
SSID and encryption standard
Which IEEE standard defines the Physical layer and the media access control (MAC) sublayer of the Data Link for a wired Ethernet?
IEEE 802.3
Why does WPA use Temporal Key Integrity Protocol (TKIP)
To ensure a new encryption key is provided for every packet that is sent
Which node on a network serves as an access point to another network?
default gateway
What is the maximum speed supported by a T1 line?
1.544 Mbps
What are the two types of satellite connections?
unidirectional and bidirectional
Which type of cable is used in 10BASE-T Ethernet standard?
CAT3 or CAT5 UTP
What does ATM stand for?
Asynchronous Transfer Mode
Which type of network cable is required to directly connect one computer to another computer?
Crossover cable
What is the maximum transmission speed supported by Cat5 cable?
100 Mbps
What does SMTP stand for?
Simple Mail Transfer Protocol
Which device enables you to connect a wired Ethernet device to a wireless network?
Wireless bridge
Which connector is used for high speed CAT7 LAN cabling?
GG45
What should you do to notify a user before deleting a shared folder from a network computer?
Send a Console Message by navigating to Computer Management > Shared Folders > Shares > All Tasks > Send Console Message
Which two protocols provide encrypted communications between 802.11x wireless clients and wireless access points?
- WEP (Wired equivalent privacy)
- WPA (Wi-Fi Protected Access)
Why would you use biometric security devices with a wireless connection?
To ensure that only a particular user can connect into the network
What is the maximum transmission speed supported by 802.11a?
54 Mbps
What IP address range does APIPA use?
169.254.0.1 to 169.254.255.255
What is the default mask for Class A networks?
255.0.0.0
Which ports are used by File Transfer Protocol (FTP)
20, 21
What is the address convention for URLs that require a Secure Socket Layer (SSL) connection?
https://
Which feature optimizes network traffic on the network connection page?
Quality of Service packet scheduler
How many binary bits does an IPv4 address include?
32 binary bits
What does a crimper do?
Seals the connection of the connector and cable wires
Which common command is used to check the internet connectivity from the command prompt
ping
What are the two main types of network cables?
- Straight through cable
- Crossover cable
What is the maximum transmission distance for Bluetooth 1.0 devices?
100 meters or 300 feet
Which type of address should you specify in wireless clients when you configure a wireless access point as a router?
gateway address
Which unshielded twisted pair (UTP) cables can support gigabit ethernet cards?
CAT53, 6, 6a, 7, and 7a
What does ISP stand for?
Internet Service Provider
What are the two main connectors used with a coaxial cable?
- Bayonet Neill Concilman (BNC)
- Threaded Neill Concilman (TNC)
What must be different in the network configuration for each client if TCP/IP is used as the standard protocol?
IP address
Which type of port is used to connect a computer to a 100BaseT network?
RJ-45
What is the maximum transmission distance for Bluetooth 3.0 devices?
1 meter or 3 feet
Which service is used to resolve an IP address to its Fully Qualified Domain Name (FQDN)
Domain Name System (DNS)
Which command is used to determine the MAC address of the computer’s Network Interface Card?
ipconfig /all
Which TCP port is used by Internet Message Access Protocol version 4? (IMAP4)
143
Which authentication protocol is used on a Windows computer that is logging into an Active Directory domain?
Kerberos
Which hardware device operates at the Physical Layer (layer 1) of the Open Systems Interconnection (OSI) model to provide network connectivity to computers?
a hub
What is the data rate speed for 802.11g wireless?
54 mbps
Which types of UTP cables can support data transfer of up to 1000 Mbps?
CAT 53, 6, 6a, 7, 7a UTP
Which cable is used with RJ-45 connectors?
UTP and STP
How do you configure a router for a home business?
Configure with a browser from a connected computer
How do you change the IP address on a wireless router?
Connect to the router from a browser and change configuration
Which protocol is used by Wireless Fidelity (Wi-Fi) networks
802.11
Which TCP port is used by HTTP?
80
Which Internet connectivity type always uses a coax cable to establish a two way connection to the internet?
cable
172.16.0.0 is reserved for which type of network?
Private
Which network mask is used to determine the number of bits in an octet that identifies the subnetwork and the number of bits to provide room for host addresses?
subnet mask
Which TCP/IP command line utility should you use to display the IP address and subnet mask for a Windows computer?
ipconfig
Which type of light is used for line of sight wireless communications for local area networks?
infrared
What is the purpose of Quality of Service?
Allows you to limit the bandwidth available for data based on the protocol used, the IP address, or other parameters
Which hardware device operates at the Data Link layer of the Open Systems Interconnection model to provide connectivity to network computers?
a switch
What is the maximum transmission speed promised by 802.11n wireless?
600 Mbps
What is the default subnet mask of 192.168.200.1
255.255.255.0
What is the commonly used protocol for exchanging files over the Internet or intranet network that supports TCP/IP?
File Transfer Protocol (FTP)
Which port is used by the Lightweight Directory Access Protocol (LDAP)
389
