Chapt 8 Flashcards
which ports are used by the file transfer protocol (FTP)?
20, 21
when setting up a wireless connection on a mobile device, what is the step after turning on WiFi?
locate the SSID
when setting up a wireless connection on a mobile device, what is the step after locating the SSID?
enter the wireless password
when setting up a wireless connection on a mobile device, what is the step after entering the wireless password?
verify internet connectivity
what are the two most popular broadband connection types?
cable modems and DSL
what is most secure: wired, wireless or cellular?
wired
which gives the greatest mobility: wired, wireless or cellular?
cellular
what two TCP/IP configuration parameters are required to communicate on a network?
IP address and subnet mask
if your TCP/IP client wants to get on the internet, which optional configuration parameter is required?
default gateway
which TCP/IP service automatically configures clients with an IP address?
DHCP
which TCP/IP service resolves host names to IP addresses?
dns
the ________ service lets computers with private IP addresses get on the internet.
NAT
which wireless security protocol is the most secure?
WPA2
other than enabling WPA2, WPA, or WEP, what two wireless network security options can you use?
disable SSID broadcasts and enable mac filtering
to configure a wireless router you should change the ______ and ________ passwords.
network(wireless) and admin
when configuring a wireless router, what shouuld you do to the SSID?
change it from the default
when configuring a wireless router, what should you upgrade at the end of the process?
firmware
_______ is the feature that configures your computer with an IP address in the 169.254 range if it can’t find a DHCP server.
APIPA
the current fastest WiFi standard is _________.
802.11ac
________ IP addresses cannot participate on the internet.
private
the unique hardware address assigned to your network adapter is called the ?
mac address
what are three network storage types?
NAS, cloud, and file server
what is the name of the logical computer address used by routers to make decisions on where to send packets?
IP address
what are the two network protocols used to access the internet?
HTTP 80, HTTPS 443
which network protocols are used to download email?
POP3 and IMAP
which network protocol is used to upload email?
SMTP
which networking device is used to connect a computer using telephone lines?
modem
which networking device connects networks to each other?
router
which networking device is a security barrier?
firewall
which networking device is used to connect computers together in a LAN
switch
which networking device is used on wireless networks to connect workstations to the network?
access point
theft of hardware is an example of what type of security concern?
availability
which of the following connectivity options gives you the best mobility?
broadband, wired, wireless, cellular
cellular
you are configuring a computer to participate on a network. which of the following are mandatory. choose two:
DHCP server, subnet mast, IP address, default gateway
subnet mast, IP address
what command would you use on a mac to determine your TCP/IP configuration information?
tcpipconfig, ifconfig, ipconfig, ipinfo
ifconfig
you are helping a friend who is opening a small tax firm. she needs to set up an office network for five users. her office will need internet access, and because she is dealing with confidential info, security is a big concern. when connecting client computers to the network, what password do they need to enter?
7ygH$2p*, tpg$2019, no password, Tx$pr4y2
Tx$pr4y2
which security option should you choose to make the network the most secure?
WPA2, WPA, WEP, NAT
wpa2
you log onto your computer, cant access internet. you run ipconfig and see that your IP address is 169.254.18.53. what is the most likely cause of the problem?
DHCP server down, DNS server down, incorrect gateway, NAT server down
DHCP server down
which of the following connectivity options gives you the best mobility?
broadband, wired, wireless, cellular
cellular
of your internal network connection options, which one can provide the fastest speeds?
802.11n, infrared, fiber, UTP
fiber
you need to setup a wireless network. which standard will give you the highest speed?
802.11n, 802.11g, 802.11ac, 802.11a
802.11ac
you need to disable the guest network. you try to login, but your password does not work. after several attempts, you realize you forgot your password. what can you do?
a) hold the reset button for 30 sec to reset the router
b) use the default pass of admin
c) unplug and plugin router
d) use the password reset option in your router config utility
a) hold the reset button for 30 sec to reset the router
you move to a remote mountain cabin. you need an internet connection. what is the most likely option that will work for you?
cable internet, DSL, satilite, dial-up
satilite
definition of an SSID?
a) a wireless network security protocol
b) a wireless network name
c) a wireless network authentication method
d) a wireless network security password
b) a wireless network name
peter works as a network tech in an ISP company. he is visiting one of the company’s customer’s houses to config a wireless router. which of the following are the critical steps he must perform to successfully accomplish the given task? choose two:
change the SSID, enable DHCP, configure the firewall, change the admin password
change the SSID, change the admin password
which one of the following is considered a private IP address?
19.21.68.100
168.192.100.101
192.168.100.101
172.15.100.101
192.168.100.101
you are connecting to an email server to download email. which of the following protocols is your computer most likely using. choose two:
POP3, HTTPS, IMAP, SMTP
POP3, IMAP
your friend asks you which router feature provides for guaranteed bandwidth? what do you tell her?
DNS, QoS, Firewall, DHCP
QoS
you are configuring a wireless router to let clients get on the internet while using private IP addresses. in this scenario, which of the following services do you need to make sure is enabled on the router?
NAT, DNS, DHCP, APIPA
NAT
which one of these connection types has the longest delay?
cellular, wireless, infrared, wired
cellular
your friend needs to set up an internet connection. which of the following options will give her the best speed? choose two.
cellular, cable internet, DSL, satilite
cable internet, DSL
which one of the following types of network connections can give you the highest data transfer rates?
T1, DSL, ISDN, Cellular
DSL
you’re helping a friend open a tax firm, she needs to set up an office network for 5 users. her office will need internet access, she’s also dealing with confidential info, so security is a big concern. she wants the tax prep agents to be able to let clients connect their wireless devices to the network. how should the password be and which password should she tell the agents to give to clients?
a) no pass
b) pass should be your date of birth
c) password should be challenging but not overly so Ex tpg$2019
d) pass should not be challenging and not overly so. Ex yourname
c) password should be challenging but not overly so Ex tpg$2019
you’re configuring a computer to participate on a network that will connect to the internet. which of the following are mandatory? choose all that apply.
A) subnet mask
B) DNS server
C) DHCP server
D) default gateway
E) IP address
subnet mask, default gateway, IP address
for network communications on a TCP/IP network, an IP address and subnet mask are required. if you want to communicate outside your network, a default gateway is also required.
which of the following statements are true about WPA? choose 2.
A) it uses a 128bit dynamic per packet key.
B) it is a protocol based on the Advanced Encryption Standard (AES) security algorithm
C) it encrypts data to provide data security
D) it is a standard that was the first to implement Temporal Key Integral Protocol
A, D
128bit dynamic per packet key
first to implement TKIP
you open your web browser and type in Google.com, but your computer can not find the website. your neighbor’s computer finds it just fine. what is most likely the cause?
A) incorrect DNS configuration
B) the website is down
C) incorrect WPA2 configuration
D) incorrect DHCP configuration
incorrect DNS config
DNS servers resolve host names to IP addresses. it’s possible that your computer has the wrong address for the DNS server.
which one of the following types of network connections can give you the highest data transfer rates?
A) ISDN
B) cellular
C) T1
D) DSL
DSL = about 50Mbps
five critical steps to setting up a secured wireless router:
1 change the router’s SSID
2 change the admin username and pass
3 enable WPA2 personal with AES encryption
4 choose a high quality security passphrase
5 from the clients, select WPA2 and then enter the security passphrase to connect
which of the following statements are true of WAN? choose 3.
A) it requires the use of a router to deliver packets to the destination
B) in this, dedicated connection is used to provide much faster broadband options
C) in this, devices are connected to each other with switches, hubs and access points
D) it is spread across multiple geographical areas
A, B, D
incorrect C. in LAN devices are connected to each other with switches, hubs, and access points.
which of the following devices reduces overhead and thus improves performance because there is essentially a virtual connection between sender and receiver?
A) router
B) firewall
C) modem
D) switch
switch
router - connects multiple network types to each other. uses routing tables to store network addresses and route packets based on the best path available.
firewalls - filter inbound and outbound network traffic based on rules defined by the admin (ACL)
which internet connection type is an inexpensive broadband internet access method with wide availability?
A) DSL
B) cable
C) radio frequency
D) fiber optic
cable - max speed of up to 50 Mbps. broadband internet with wide availability.
incorrect DSL - max speed of up to 30Mbps. shares existing phone wires with voice service.
incorrect Fiber-Optic - max speed of 1 Gbps, incredibly fast and expensive
which of the following TCP/IP protocols is located ot the process/application layer?
A) ethernet
B) ICMP
C) UDP
D) SMTP
SMTP - located at the process/application layer of the DoD model
Ethernet - located at the network layer
ICMP - located at the internet layer
UDP - located at the host-to-host layer
