Core Network Protocols
Understanding Network Packets, Protocols and Archtectures
Understanding Network Packets, Protocols and Archtectures
Set of flashcards Details
| Flashcards | 122 |
|---|---|
| Language | English |
| Category | Computer Science |
| Level | Vocational School |
| Created / Updated | 03.09.2014 / 16.09.2020 |
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What is WEP?
Wired Equivalent Privacy
What is WPA-PSK?
Wifi Protected Access with a Pre-Shared Key
What is the payload of an ICMP echo request from Windows?
The alphabet
Provide two examples of ICMP messages that include 64 bits of the original message.
Redirect, destination unreachable, time exceeded
What is the "all routers multicast" address?
224.0.0.2
What is the IP "next header" or protocol value for ICMP?
01
Router solicitations and advertisements are not very common. What protocol is used instead?
DHCP
What is the IPv6 process that replaces ARP and uses several different types of ICPv6 messages?
Neighbor discovery
What are the type and code values of the ICMP network destination unreachable message?
3 and 0
What event causes an ICMP time exceeded message to be generated?
The IP TTL field is decremented to 0
Instead of a TCP or UDP port number, what value is used when forwarding ICMP packets through a NAT router?
The ICMP indentifier
On the receiving host, what is the effect of an ICMP redirect message?
A route is added to the local host routing table for use in subsequent transmissions
What is DOS?
Disk Operating System
What is ASCII?
American Standard Code for Information Interchange
What is CIDR?
Classless Inter Domain Routing
What is the Name of the process by which an upper- layer protocol is wrapped up in a lower- layer protocol?
Encapsulation
Name four communication models.
What two documents specify the standardization of the OSI model?
How many layers are in the OSI and TCP/IP models, respectively?
7/5
Name the layers of the OSI model.
Application, Presentation, Session, Transport, Network, Data Link, Physical
Name the layers of the TCP/IP model.
Application, Transport, Internet, Data Link, Physical
What two documents present and detail the use of the TCP/IP model?
RFCs 1122 and 1123
There are two forms of communication described in both standards. These forms are predominantly part of Layers 3 and 4. What are they?
Connection mode (oriented) and connectionless-mode
Network administrators typically have the ability to use whatever protocols they wish, regardless of the layer in question. True or false?
One big difference between the documentation of the TCP/IP and OSI standards is that the TCP/IP RFC specifies the protocols to be used and the OSI ITU-T model documentation does not. True or False?
For each address type or device, spezify its proper layer (Layer1, Layer 2, Layer 3 or Layer 4)
Switch
Router
Gateway
MAC address
IP address
Port number
Layer 2, Layer 3, Layer 4, Layer 2, Layer 3, Layer 4
What is IP?
Internet Protocol
What is ARP?
Adress Resolution Protocol
What is ICMP?
Internet Control Message Protocol
What is the IEEE?
Institute of Electrical and Electronic Engineers
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