IT Essentials Ch 7-9
A device has been assigned the IPv6 address of 2001:0db8:cafe:4500:1000:00d8:0058:00ab/64. Which is the network identifier of the device? 1000:00d8:0058:00ab 2001:0db8:cafe:4500:1000:00d8:0058:00ab 2001 2001:0db8:cafe:4500:1000 2001:0db8:cafe:4500
2001:0db8:cafe:4500
Which is the compressed format of the IPv6 address 2002:0042:0010:c400:0000:0000:0000:0909? 2002:42:10:c400::909 2002:420:c4:1008:25:190::990 2002:4200::25:1090:0:99 2002:42::25:1090:0:99
2002:42:10:c400::909
A technician has captured packets on a network that has been running slowly when accessing the internet. Which port number should the technician look for within the captured material to locate HTTP packets? 20 21 53 110 80
80
Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.) 802.11n 802.11ac 802.11g 802.11a 802.11b
802.11n, 802.11g, 802.11b
What network service controls those who are permitted to access a network, what they can do while they are there, and track what actions they perform while accessing the network? AAA FTP server web server print server
AAA
A technician needs to add a new wireless device to a small WLAN. The WLAN is a mixture of old and newer 802.11b and 802.11g devices. What choice for the new device would provide the most interoperability for present and future growth? Add a new 802.11a device. Add a new 802.11b device. Add a new 802.11g device. Add a new 802.11n device.
Add a new 802.11n device.
What are two common media used in networks? (Choose two.) copper nylon water fiber wood
Copper, fiber
The current IP configuration of a small company is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way for IP configuration of workstations. Which service would simplify the workstation IP configuration task? APIPA DHCP DIPS ICMP
DHCP
Which network service automatically assigns IP addresses to devices on the network? traceroute DNS DHCP Telnet
DHCP
Which protocol dynamically assigns IP addresses to network devices? RARP TCP DHCP DNS ICMP
DHCP
A user needs to connect to Cisco.com but does not know the IP address for this website. What type of server will translate the website name into an IP address? DNS server web server proxy server FTP server
DNS server
Which technology uses existing electrical wiring to connect devices to a network? IPS 802.11 Z-Wave Ethernet over Power
Ethernet over Power (EOP)
A technician is setting up a server that requires two connections between the client and the server, one for commands and replies, the other for the actual transfer of files. What type of server will accomplish this task? FTP server web server proxy server print server
FTP server
Which protocol is used by ping to test connectivity between network hosts? ARP ICMP TCP DHCP
ICMP
Which security technology is used to passively monitor network traffic with the objective of detecting a possible attack? IPS IDS proxy server firewall
IDS
A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address? It can communicate with networks inside a particular company with subnets. It can communicate on the local network as well as on the Internet. It has a public IP address that has been translated to a private IP address. It cannot communicate outside its own network.
It cannot communicate outside its own network.
A switch is a networking device that will record ____ addresses by inspecting every incoming data frame.
MAC
The process that a wireless router uses to translate a private IP address on internal traffic to a routable address for the Internet is called ___ .
NAT
Which type of network will extend a short distance and connects printers, mice, and keyboards to an individual host? PAN LAN MAN WLAN
PAN
The technology that allows a switch to deliver power to a device like an IP phone or an access point through the data cable is known as ____ .
PoE
A small company is upgrading its phone system with IP phones. These phones can be used just by plugging into a network port in the offices. Which technology would support the IP phones? wireless power transfer Power over Ethernet NFC UPnP
Power over Ethernet
A technician has been asked to assist with some LAN cabling. What are two standards that the technician should research before this project begins? (Choose two.) Z-Wave 802.11c T568B 802.11n Zigbee T568A
T568B, T568A
What is the problem if a computer automatically configures an IP address in the 169.254.x.x address range? The DHCP server is unreachable. The DNS server is unreachable. The computer is configured with an incorrect default gateway. The computer NIC is disabled.
The DHCP server is unreachable.
A user reports that the corporate web server cannot be accessed. A technician verifies that the web server can be accessed by its IP address. What are two possible causes of the problem? (Choose two.) The web server is misconfigured. The DNS server address is misconfigured on the workstation. The network connection is down. The default gateway address is misconfigured on the workstation. The web server information is misconfigured on the DNS server.
The DNS server address is misconfigured on the workstation., The web server information is misconfigured on the DNS server.
A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem? The cable is not connected properly to the NIC. The computer has an invalid IP address. The computer has an incorrect subnet mask. The computer has an invalid default gateway address.
The computer has an invalid default gateway address.
A network technician is setting up a web server for a small company. The company has obtained a domain name, company-a.com, from a domain registry service. The new web server is accessible through the IP address matching the domain. However, when the technician types company-a.com in the web browser, an error message displays saying that "The connection has timed out". What is the problem? The DHCP server is down. The domain name resolution failed. The URL needs to be http://company-a.com. A web page named home.html is required to be created first.
The domain name resolution failed.
A new computer workstation has been installed in a small office. The user of the workstation can print a document using a network printer on the LAN, but cannot access the Internet. What is a possible cause of the problem? The DHCP server IP address is misconfigured. The TCP/IP stack is not functional. The gateway IP address is misconfigured. The workstation is configured with a static IP address.
The gateway IP address is misconfigured.
A wireless router is displaying the IP address of 192.168.0.1. What could this mean? The wireless router still has the factory default IP address. The NAT function is not working on the wireless router. Dynamic IP address allocation has been configured on the router and is functioning correctly. The wireless router has been configured to use the frequencies on channel 1.
The wireless router still has the factory default IP address.
Which two protocols operate at the transport layer of the TCP/IP model? (Choose two.) UDP ICMP TCP FTP IP
UDP, TCP
A network technician is setting up a wireless access point in the front office of a small company. The technician needs to disable an option on the access point that would allow devices to dynamically add themselves to the network without configuration. Which technology should the technician disable? NAT UPnP MAC filtering port forwarding
UPnP
A network technician is setting up a web server for a small company. The company has obtained a domain name companyX.com from a domain registry service. The web server must provide secure communication through SSL/TLS technology. When the technician enters companyX.com in the web browser, the unsecured part of the website is displayed. What should the technician do to make the web browser display the secure content of the web server? Use https://companyX.com as the URL. Use http://companyX.com as the URL. Use http://companyX.com::443 as the URL. Ensure that the domain name is successfully resolved
Use https://companyX.com as the URL.
A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this scenario? LAN MAN WAN WLAN
WAN
A user is setting up a home wireless network. Which type of device must the user have in order to establish the wireless network and provide access to the internet for multiple home devices? hub wireless router switch patch panel
Wireless router
What is a result when the DHCP servers are not operational in a network? Workstations are assigned with IP addresses in the 169.254.0.0/16 network. Workstations are assigned with the IP address 0.0.0.0. Workstations are assigned with the IP address 127.0.0.1. Workstations are assigned with IP addresses in the 10.0.0.0/8 network.
Workstations are assigned with IP addresses in the 169.254.0.0/16 network.
Which smart home technology requires the use of a device, known as a coordinator, to create a wireless PAN? 802.11ac 802.11n Zigbee Z-Wave
ZigBee
An administrator is setting up a framework to support access control on a network device. What type of server is able to control those who are permitted to access a network and track what actions they perform while accessing the network? authentication server FTP server web server print server
authentication server
An administrator is setting up a framework to support access control on a network device. What type of server is able to control those who are permitted to access a network and track what actions they perform while accessing the network? authentication server print server FTP server DNS server
authentication server
A ___ technology uses different frequencies to transmit multiple signals simultaneously over the same cable.
broadband
Which network device regenerates the data signal without segmenting the network? router modem switch hub
hub
A computer has been assigned an IP address of 169.254.33.16. What command initiates the process of requesting a new IP address? ipconfig /release net computer nslookup tracert
ipconfig/release
A small company connects data acquisition equipment to the serial port of a computer. The equipment user has reported that not all data is being received by the computer. A technician wants to check the serial communication between the equipment and the computer. Which tool can the technician use to troubleshoot the serial communication? multimeter cable tester loopback plug tone generator and probe
loopback plug
What command can be used to troubleshoot domain name resolution issues? get tracert nslookup arp -a
nslookup
A customer has a web server for a small business. The business uses both wired and wireless networking. A Linksys WRT300N wireless router provides wireless and wired connectivity. What firewall option may be enabled in order for customers to gain access to the web server from their remote locations?WPA2 WEP MAC address filtering port triggering port forwarding
port forwarding
A company is setting up one new laser printer on every floor. What type of server will store the print jobs in a queue and then spool them to the device when it is ready? print server FTP server proxy server web server
print server
A technician is setting up an environment where popular and frequently accessed web pages are stored locally on the internal network. What type of server will accomplish this task? proxy server FTP server web server print server
proxy server
What physical layer medium is used by DSL to provide high-speed data communications? telephone lines television cable Satellite dish 4G wireless radio
telephone lines
A technician wishes to update the NIC driver for a computer. What is the best location for finding new drivers for the NIC? Windows Update the website for the manufacturer of the NIC the installation media that came with the NIC the website for Microsoft the installation media for Windows
the website for the manufacturer of the NIC
Which filtering method uses IP addresses to specify allowed devices on your network? port triggering blacklisting whitelisting MAC address filtering port forwarding
whitelisting
