0 is the administrative distance for EIGRP. 0 is the administrative distance for RIP. 0 is the default administrative distance for directly connected networks. 0 is the administrative distance for OSPF. None of the above.
The administrative distance is used to determine how trustworthy routing information is. It may be rated anywhere from 0 through 255, with 0 being a directly connected device and 255 being not trustworthy at all. The administrative distance for RIP is 120. The administrative distance for EIGRP is 90. The administrative distance for OSPF is 110.
Router(config-if)#no cdp run Router(config-if)# no cdp enable Router#no cdp enable Router(config-if)#disable CDP None of the above.
To disable CDP on serial interface 1 the no cdp enable command is used as follows: router#config terminal router(config)#int s1 router(config-if)#no cdp enable router(config-if)#^z The change may be verified with the following command: router#sh cdp int The command to disable CDP on an entire router would be : router(config)#no cdp run
The Network layer is responsible for setting up, maintaining, and tearing down virtual circuits. The Presentation layer is responsible for setting up, maintaining, and tearing down virtual circuits. The Transport layer is responsible for setting up, maintaining, and tearing down virtual circuits. The Session layer is responsible for setting up, maintaining, and tearing down virtual circuits.
The Presentation layer is responsible for text, graphics and audio. Consider it as the presenter to the end user. The Presentation layer is also responsible for the presentation of graphics (PICT, TIFF, JPG etc), and responsible for sound as well as the translation of EBCDIC to ASCII. The Network layer is responsible for best path selection and packet switching between router interfaces. The Session layer is responsible for setting up, tearing down, and terminating sessions (dialogues).
The Data Link layer takes the data from the layer above it and segments it with the MAC address for the receiving host. Data from the upper layers is given to the Network layer where it is segmented with an IP field for each frame. The Session layer determines how data should be segmented based on whether full duplex or half du-plex will be used for communication. The Transport layer is responsible for segmenting upper layer data into MTUs of 1500 bytes by TCP which adds Sequence number fields, ACK\SYN fields and CRC fields for reliability.
Data encapsulation The Transport layer takes upper layer data and converts it to segments of 1500 bytes each. The Network layer takes the segmented data from the Transport layer and packages them with IP infor-mation fields. The Data Link layer takes the segmented packets and adds a MAC header, and trailer information to them, and then converts these packets into frames (logical group of zeros and ones). Finally the Physical layer takes the frames that it receives from the Data Link layer, and translates these into electrical or optical pulses to be transmitted over the physical network medium.
64 hosts per network 62 hosts per network. The network ID is 192.37.13.64 The network ID is 192.37.13.0 There is only one correct answer.
The quickest and simplest method is to use the magic number of 256, since there are 256 variables in an octet. Since we have 26 bits turned on in the subnetmask, 192 will be subtracted from 256. (255.255.255.192), 2 bits for subnetting and 6 bits for defining the hosts in each subnet. 256 - 192 = 64 The first subnet will be the base number of 64, and the second would be 128. (multiples of 64). A valid host address would be any address between the subnets except for an address with all 1's or all 0's. Subnet ID---Host range------Broadcast address 0----------------1 - 62-----------63 64-------------65 - 126----------127 128-----------129 - 190---------191 192-----------193 - 254---------255
You could do this using the power formula as follows: A subnet mask of 192 has 2 bits turned on, 11000000. 2^2 - 2 = 2 valid subnets 2^6 - 2 = 62 valid hosts In either case remember that on the CCNA exam calculators are not allowed and there are a lot of subnetting questions.
Pressing the enter key will allow you to view one full screen at a time. Pressing the tab key will allow you to view one line at a time. Pressing the space bar will allow you to view one full screen at a time. Pressing the tab key will allow you to view one full screen at a time.
Pressing the enter key will allow you to view one line at a time. Pressing the tab key is often times used to complete a command.
router(config-if)#ppp chap router(config-if)#ppp encapsulation chap router(config-if)#ppp authentication chap router(config-if)#ppp enable chap
The following command would be required to set CHAP as the authentication method. Router(config-if)# int s1 Routerconfig-if)#ppp authentication chap To view a Cisco router's authentication types type in the following: Router(config-if)# ppp authentication ? chap challenge handshake authentication protocol (CHAP) pap password authentication protocol (PAP)
The ‘router>show version’ command is used to identify the system hardware and software version. The ‘router#show config’ command is used to identify the system hardware and software version. The ‘router>show config’ command is used to identify the system hardware and software version. The ‘router#show version’ command is used to identify the system hardware and software version.
This command will identify the IOS version, hardware (CPU and amount of DRAM as well as Flash), uptime as well as the name of the image file and the configuration register settings. Keep in mind that it will also show the configuration register.
Once the router interface message appears press the enter key to get a prompt similar to the following ‘router>’, and this is referred to as privileged mode. When the router completes the POST process press the ‘Enter’ key for the interface message, followed by the ‘enable’ command to get to user exec mode. Once the router interface message appears press the enter key to get a prompt similar to the following ‘router>’, and this is referred to as user exec mode. When the router completes the POST process press the ‘Enter’ key for the interface message, followed by the ‘config’ command to get to user exec mode.
User exec mode is also referred to as user mode. When the router completes the POST process it will load the Cisco IOS from Flash if it is present, and if not then the router will go into setup mode. Once POST is complete and the router loads the IOS an interface status message will appear and the technician is required to press the ‘enter’ key which will offer a prompt with the greater than sign. router> This mode is required before getting to privileged exec mode which is obtained by using the enable command. Enable mode is also referred to as privileged mode or privileged exec mode.
The Presentation layer has the responsible of ensuring that data arrives undamaged by determining the type of compression that will be used. The Application layer is responsible for guaranteed delivery. The Session layer ensures that that data arrives at its destination by controlling the session. Transport layer has the responsible of ensuring that data arrives at its destination.
Windowing takes place at the Transport layer of the 7-layer OSI model, while it also takes place at the Host-to-Host layer of the TCP/IP DOD model. TCP performs a 3-way handshake and the sliding window changes when the cache at the receiving machine becomes overloaded. The Presentation layer is responsible for data encryption, compression and the formatting of data. The Presentation layer is also responsible for the presentation of graphics (PICT, TIFF, JPG etc), and respon-sible for sound (MIDI and MP3), text (RTF) as well as the translation of EBCDIC to ASCII. The Application layer is responsible for determining that sufficient resources are available to access the network. The Session layer is responsible for setting up, tearing down (terminating) sessions (dialogues).
