Return of the MAC
1s & 0s & 0s and 1s
Ports & Sockets
(D)id(N)ot(S)tudy
Trouble Trouble Trouble
100
Traditionally MAC addresses contain how many parts?
Two
100
What does 11111111 equal in decimal form?
255
100
What are the three different types of port number ranges as defined by IANA?
Well-known, registered, and dynamic
100
Which computers are the highest authorities in the Domain Name System hierarchy?
Root servers
100
What command-line utility can you use to assign the correct DNS server IP address?
nslookup
200
What part of the MAC address is unique to the manufacturer?
OUI (organizationally unique identifier)
200
Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To which device(s) are you transmitting?
All devices on your local network
200
What is the difference between ports and sockets?
A port is a number assigned to a process, whereas a socket consists of both a host's IP address and a process's TCP or UDP port
200
Which type of DNS record identifies an email server?
MX record
200
You have just set up a new wireless network at your house, and you want to determine whether your Windows laptop has connected to it and obtained a valid IP address. What command will give you the information you need?
ipconfig
300
The last 24 bits of the MAC address contains what information?
The device ID
300
What is a subnet mask?
It is a 32-bit number that helps one computer find another
300
Well known ports fall between what range?
0-1023
300
How might an organization configure a DNS server for use on their network?
Primary, secondary, caching, and forwarding
300
Shows current TCP/IP addressing and domain name information on a Windows computer
ipconfig
400
How many bits make up the MAC address?
48
400
What class of IP address is in the example:
255.255.0.0
Class B
400
FTP sometimes uses a random port for data transfer, but an FTP server always, unless programmed otherwise, listens to the same port for session requests from clients. What port does an FTP server listen on?
21
400
What are the two types of DNS requests?
Recursive and Iterative
400
Used to verify that TCP/IP is:
•Installed
•Bound to the N I C
•Configured correctly
•Communicating with the network
Ping
500
NIC card
500
What are the two different variations of network address translation (NAT)?
SNAT & DNAT
500
You issue a transmission from your workstation to the following socket on your LAN: 10.1.1.145:110. Assuming your network uses standard port designations, what Application layer protocol handles your transmission?
POP3
500
What command line tool can you use to check a computer's time source?
w32tm /query /source