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CCNA Quick Notes – TCP/IP
Wednesday, April 8th, 20091.What are the four layers of the TCP/IP layer model? The four layers of the TCP/IP layer model are: Application (process) Host-to-host (transport) Internet Network Access (physical and data link) 2.What two protocols function at the transport (host-to-host) layer of the TCP/IP model? The two protocols that function at the host-to-host layer of the TCP/IP [...]
CCNA Quick Notes – VLANs
Wednesday, April 8th, 20091.What are VLANs? VLANs are broadcast domains in a Layer 2 network. Each broadcast domain is like a distinct virtual bridge within the switch. Each virtual bridge you create in a switch defines a broadcast domain. By default, traffic from one VLAN cannot pass to another VLAN. Each of the users in a VLAN is [...]
CCNA Quick Notes – PPP
Wednesday, April 8th, 20091.PPP can be used over what physical WAN interfaces? PPP can be used on the following: Asynchronous serial interfaces High-Speed Serial Interface (HSSI) ISDN Synchronous serial interfaces Sorry you have no rights to view this post! [This content is only available for our VIP member].
CCNA Quick Notes – IOS Commands
Wednesday, April 8th, 20091.What two EXEC modes are supported in the Cisco IOS? The two EXEC modes are: User EXEC mode (user mode) Privileged EXEC mode (enable or privileged mode) In the IOS, what is User EXEC mode? User EXEC mode is the first mode you enter when you log into the IOS. This mode is limited and [...]
CCNA Quick Notes – NetworkManagement
Wednesday, April 8th, 20091.What is the Cisco Discovery Protocol (CDP)? CDP is a Cisco proprietary protocol that runs on all Cisco IOS-enabled devices. It is used to gather information about directly connected neighboring devices. CDP operates at Layer 2 of the OSI model and is media-independent. With CDP, you can tell the hardware type, device identifier, address list, [...]
CCNA Quick Notes – Switching
Friday, April 3rd, 20091.What are three types of LAN traffic? Unicasts – intended for one host. Broadcasts – intended for everyone. Multicasts – intended for a only a subset or group within an entire network. 2.What are unicast frames? Unicast frames are the most common type of network traffic. A unicast frame is a frame intended for only [...]
CCNA Quick Notes – Frame Relay
Friday, April 3rd, 20091.What protocol does Frame Relay rely on for error checking? Frame Relay does not rely on any certain protocol for error checking. Instead, it relies on upper-layer protocols to provide error checking. For example, Frame Relay relies on TCP to provide error checking in an IP network. 2.At what layers of the OSI model does [...]
CCNA Quick Notes – Access Lists
Friday, April 3rd, 20091.Besides named access lists, what are the two types of IP access lists? The two types of IP access lists are standard and extended. What criteria do standard IP access lists use to filter packets? Standard IP access lists filter packets by the source address. This results in the packet’s being permitted or denied for [...]