Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
57 Cards in this Set
- Front
- Back
|
What is the first layer of the OSI Model |
Physical |
|
|
What is the second layer of the OSI Model |
Data Link |
|
|
What is the third layer of the OSI Model |
Network |
|
|
What is the fourth layer of the OSI Model |
Transport |
|
|
What is the fifth layer of the OSI Model |
Session |
|
|
What is the sixth layer of the OSI Model |
Presentation |
|
|
What is the seventh layer of the OSI Model |
Application |
|
|
What is the mnemonic to help remember to OSI Model |
Please Do Not Throw Sausage Pizza Away |
|
|
In the OSI Model, what is involved in the Physical layer? |
Physical cables
Defines how bits move from one device to another. It details how cables, connectors and network interface cards are going to work and how to send and receive bits. |
|
|
In the OSI Model, what is involved in the Data Link layer? |
Encapsulates a packet in a frame.
A frame contains a header and a trailer that enables devices to communicate. A header, most commonly, contains a source and a destination MAC address. A trailer contains the Frame Check sequence field, which is used to detect transmission errors. |
|
|
In the OSI Model, What is involved in the Network Layer? |
Defines device addressing, routing, and path determination.
Device (logical) addressing is used to identify a host on a network (e.g. by its IP address). |
|
|
In the OSI Model, what is involved in the Transport Layer? |
Segments of great chunks of data received from the upper layer protocols.
Establishes and terminates connections between two computers. used for data flow and control data recovery. |
|
|
In the OSI Model, what is involved in the Session Layer? |
Defines how to establish and terminate a session between two systems. |
|
|
In the OSI Model, what is involved in the Presentation Layer? |
Defines data formats.
Compression and encryption are defined at this layer. |
|
|
In the OSI Model, what is involved in the Application Layer? |
This layer is the closest to the user.
It enables network applications to communicate with other network applications. |
|
|
What protocol(s) is used in the Application Layer of the OSI Model? |
HTTP/Https |
|
|
What protocol(s) is used in the Presentation Layer ? |
MIME |
|
|
What protocol(s) is used in the Session Layer? |
SSL, NetBIOS |
|
|
What protocol(s) is used in the Transport Layer? |
TCP, UDP |
|
|
What protocol(s) is used in the Network Layer? |
IP, ICMP |
|
|
What protocal(s) is used in the Data Link Layer? |
PPP, HDLC |
|
|
What Protocal(s) is used in the Physical Layer? |
Ethernet |
|
|
What does OSI stand for? |
Open Systems Interconnection |
|
|
What Layers are in the TCP/IP Model? |
Application, Transport, Internet, Network Access |
|
|
What are the layers of encapsulation? |
Frame header, IP header, TCP header, Data, Frame trailer. |
|
|
What is a Frame? |
Frame refers to to the encapsulated data defined by the Network Access layer. A frame can have a header and a trailer that encapsulate a data section |
|
|
What is a Packet? |
Packet is used to describe the encapsulated data defined by the internet layer. A packet can have a header with the source and destination IP address. |
|
|
What is a Segment? |
Segment describes encapsulated data defined by the transport layer. A segment can have a header with information such as source and destination port numbers, sequence and acknowledgment number, etc |
|
|
What standard is Ethernet described as? |
IEEE 802.3 |
|
|
What does MAC Address stand for? |
Media Access Control List |
|
|
What is a MAC address unique to? |
A network card. |
|
|
What is the difference between a hub and a switch? |
Hubs send information out of all ports where as switches can be configured to inspect traffic |
|
|
What is a wide area network (WAN)? |
A network that spans across several geographical areas. |
|
|
What is a local area network (LAN)? |
It is the immediate network in the office/house/building |
|
|
What is a metropolitan area network (MAN)? |
Larger than a LAN but smaller than a WAN, it generally connects two buildings in the same geographical area. |
|
|
What is a subnet? |
A sub-net is 4x8 bit sections of in the format of an IP address that determines which bits of an IP address are part of the network and determine the host. |
|
|
What is the address resolution protocol (ARP)? |
A network protocol used to find out the hardware (MAC) address of a device from an IP address. |
|
|
What is dynamic host configuration protocol (DHCP)? |
A network protocol that is used to assign various network parameters to a device such as IP, sub net mask, default gateway, and DNS Server. |
|
|
What is the domain name system (DNS)? |
A network protocol used to translate host names into IP addresses. |
|
|
What is Telnet? |
Telnet is a network protocol that allows users to communicate with a remote device. |
|
|
What is SSH? Why is it different than Telnet? |
SSH has the same function as Telnet however it uses encryption for the transmission. |
|
|
What is FTP (File Transfer Protocol) and what is its purpose? |
FTP is a network protocol used to transfer files from one computer to another over a TCP network. |
|
|
What is TFTP? |
It is a simple version of FTP without some of the advanced features FTP offers. |
|
|
What is HTTP? |
HTTP is a client-server protocol that allows clients to request web pages. |
|
|
What is HTTPS? |
A secure version of HTTP that uses encryption. |
|
|
What are the three main ways to access the Cisco IOS? |
Console access through a serial port, Telnet Access, SSH Access |
|
|
What types of memory are on a Cisco Device? |
Read Only Memory (ROM), Random Access Memory (RAM), Flash memory, Nonvolatile RAM (NVRAM) |
|
|
What is the user EXEC mode? |
The default mode for the IOS CLI. |
|
|
What is Privileged EXEC mode? |
This mode is accessed by typing the enable command from user EXEC mode, usually password protected. Used to configure device. |
|
|
What is global configuration mode? |
This mode can be accessed by typing the configure terminal (config t). |
|
|
How do you configure a static route |
Enter global config mode, put in the command |
|
|
Instead of a next hop IP, what else can you use for a static route? |
A directly connected interface such as FastEthernet0/0 (fe0/0). |
|
|
What is a Distance Vector Protocol |
Distance vector routing protocols use distance to determine the best path to a remote network. The distance is usually the number of hops (routers) to the destination network.
RIP and EIGRP are examples of distance vector routing protocols. |
|
|
What is a Link State Protocol |
They have the same basic purpose as distance vector protocols, to find a best path to a destination, but use different methods to do so. Unlike distance vector protocols, link state protocols don't advertise the entire routing table. Instead, they advertise information about a network toplogy (directly connected links, neighboring routers...), so that in the end all routers running a link state protocol have the same topology database. Link state routing protocols converge much faster than distance vector routing protocols, support classless routing, send updates using multicast addresses and use triggered routing updates.
|
|
|
What is RIP? |
RIP (Routing Information Protocol) is one of the oldest distance vector routing protocols. It is usually used in small networks. RIP is very simple to configure and maintain, but lacks some advanced features of routing protocols like OSPF or EIGRP.
|
|
|
What are some key features of RIP? |
RIP version 2 is capable of advertising subnet masks and uses multicast to send routing updates, while version 1 doesn't advertises subnet masks which means it does not support VLSM. RIPv2 sends the entire routing table every 30 seconds
|
|
|
How do you configure RIP? |
Configuring RIPv2 is a pretty straightforward process. Only three steps are required:
1. enabling RIP by using the router rip global configuration command 2. instructing the router to use RIPv2 by typing the version 2 command 3. telling RIP which networks to advertise by using one or more network commands |
