ITS 2300 Data Networking Quizzes
When a caching DNS server is used, if three clients each query for www.youtube.com how many times does the DNS Dance occur?"
1
Layers of the Network
1. Hardware / Physical Layer 2. Network Interface / Switch Layer 3. Network / IP Layer 4. Transport / Protocol Layer 5. Application Layer
Layers from 1 -5
1. physical 2. data link 3. network 4. transport 5. application
.mil
US Military
.edu
US educational
.gov
US government
Binary Law
Unbreakable
.uk .us .tv .de .ru
United Kindom United States Tuvalu Germany Russia
When subnetting a network how many many sub-networks can be made ?
Until all of them are /32
Business Needs
" Wait, the boss wants WHAT ? "
Elegant Design
"We wish, this never gets to happen"
8x5 - NBD
* normal working hours x 5 working days of the week x Next business day
How many USABLE IPs are lost each time a network is subnetted ?
2
a /24 subnet mask refers to a network of how many TOTAL IPS?
256
a packet that travel over the internet to a remote destination has at least how many headers?
5
MAC Addresses are in this format:
AA:BB:CC:DD:EE:FF
DNS records
AAA A MX
Wireshark is an application that displays
All packets it sees on a link
An IPV4 address has how many parts ?
Dotted Decial has 4 parts Four octets Four bytes
Data Link (ethernet)
Frame
FQDN
Fully Qualified Domain Name
GNS3
Graphical Network Simulator -3
.net
Network
The RD Gateway and the RD Gateway both require what time of username ?
OHIO ID
Network (IP)
Packet
Transport
Protocol
Remote Desktop Protocal provides what type of connectivity
Secure / GUI
There are 254 usable IPs in a /24
True
A protocol uses headers to hold as addressing information for that layer?
True
A switch directs traffic on a local network
True
Gateway / Static / DHCP Pool Conventions
What makes sense
.com
commercial
a router directs traffic on a local network
false
the Network model discussed has how many layers?
five
.info
information
.int
international
ipconfig shows
ip address
N-2 Rule
mostly unbreakable
.org
organization
Traceroute tells the user :
path of packets through the network AND if the remote system is responding
Application
ping
Switch ports are different from router ports because of
switch ports - mac address router - ip address
Ping
tells the user if the remote system is reachable and responding
TLD
top-level domain
A switch is an example of a transport layer
true
ARP uses broadcast traffic as part of its traffic
true
VYOS is a GUI operating system
true
the commands nslookup and dig BOTH resolve DNS names
true