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How many bits are in a MAC address? |
48 bit |
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How many bits are in an IPv4 IP address? In an IPv6 address? |
32 bit, 128 bit |
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How does a cllient application identify a server application on another commputer on the network? |
Transmission Control Protocol/Internet Protocol |
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What are IP addresses called that begin with 10, 172.16, or 192.168? |
private IP addresses |
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In what class is the IP address 185.75.255.10? |
Class B |
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In what class is the IP address 193.200.30.5? |
Class C |
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Describe the difference between public and private IP address. If a network is using private IP address, how can the computers on that network access the Internet? |
The IP addresses available to the internet are called public IP addresses. A company conserves its public IP address by using private IP addresses that are not allowed on the internet. A computer using a private IP address on a private network can still access thhe Internet if a router or other device that stands between the network and the Internet is using NAT Network Address Translation. |
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Why is it unlikely that you will find the IP address 192.168.250.10 on the Internet? |
The IP address 192.168.250.10 is a private address. Private addresses are for internal networks only and require NAT (Network Address Translation) to access the internet. |
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In Figure 15-9, the subnet mask is four notches tall and is considered a classless subnet mask for this network of sticks. How many notches tall would be a classful subnet mask for the same network? |
… |
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If no DHCP server is available when a computer configured for dynamic IP addressing connects to the network, what type of IP address is assigned of 169.254.1.11, what can you assume about how it received that IP address? |
It uses an Automatic Private IP Address APIPA |
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If a computer is found to have an IP address of 169.254.1.1, what can you assume about how it received that IP address? |
Class B address First 2 octets for network Last 2 octets for host or subnet |
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What are the last 64 bits of a IPv6 address called? How are these bits used? |
Interface ID These 64 bits or 4 blocks uniquely identify an interface on the local link |
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Name at least three tunneling protocols that are used for IPv6 packets to travel over an IPv4 network. |
ISATAP TEREDO 6TO4 |
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How is an IPv6 IP address used that begins with 2000::? That begins with FE80::? |
Global unicast Link-local unicast |
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How many bits are in the Subnet ID block? What are the value of these bits for a link-local IP address? |
16 bits FE::/64 |
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Which type of IPv6 address is used to create multiple sites with a large organization? |
unique local unicast address |
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What type of server serves up IP address to computer on a network? |
DHCP |
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Which TCP/IP protocol that manages packet delivery guarantees that delivery? Which protocol does not guarantees delivery, but is faster? |
TCP UDP |
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At what port does an SMTP email server listen to receive email from a client computer? |
port 25 |
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Which protocol does a web server use when transmissions are encrypted for security? |
HTTPS |
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What type of server resolves fully qualified domain names to IP addresses? |
FQDN fully qualified domain name |
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Which email protocol allows a client application to manage email stored on an email server? |
IMAP |
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What type of protocol is used to present a public IP address to computers outside the LAN to handle requests to use the Internet from computers inside the LAN? |
Telnet |
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Which protocol is used when an application queries a database on a corporate network such as a database of printers? |
LDAP |
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What type of encryption protocol does Secure FTP SFTP use to secure FTP transmissions? |
Variation of SSH |
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What two Windows a applications use the RDP protocol and port 3389? |
Windows Remote Desktop Remote Assistance utilities |
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Which version of 802.11 technologies can use two antennas at both the access point and the network adapter? |
802.11n MIMO – 2 or more antennas to improve performance |
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Which wireless encryption standard is stronger, WEP, WPA? |
WPA2 WPA WEP |
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When securing a Wi-Fi wireless network,, which is considered better security: to filter MAC addresses, use encryption, or not broadcast the SSID? |
use encryption other two weak |
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Would you expect WPS to be used when wireless network is using strong security, weak security, or no security as in a public hotspot? |
strong security |
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