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Answered 2015-09-07 02:54:42

When the interface is functioning as a DCE device

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What is the result of using the clock rate 56000 command at the serial interface of the router?

The interface is configured as a DCE device.


When must a router serial interface is configured with the clock rate command?

You should configure the clock rate at the DCE device. ALWAYS The routers will not work right if you forget to do this.


When must a router serial interface be configured with the clock rate?

When it needs to provide clocking for the serial line. This occurs when you are using a null-modem cable in a lab. You would apply the clock rate to the router that is connected as the DCE device.


Cisco router 2801 serial port is manually down how you can enable this port?

router> enablerouter# configure terminalrouter(config) interface serial (interface number)router(config-if) no shutdownrouter(config-if) endrouter#substitute (interface number) for the actual int number.. eg serial 0/1you can find the number of the interface by using show interfaces from privileged mode


Line protocol in down then what you do?

there may be the issue with the layer 2 protocol like hdlc or ppp is not configured or wrongly configured if the interface is serial interface.


What is difference between serial interface and Ethernet interface?

The FastEthernet interface of R1 is disabled. One of the default routes is configured incorrectly. A routing protocol is not configured on both routers. The default gateway has not been configured on both routers.


When configuring a serial interface on a router what is the default encapsulation?

hdlc


If a router receives a packet that it does not know how to forward what type of route must be configured on the router to prevent the router from dropping it?

The default route must be configured such as: Ip route 0.0.0.0 0.0.0.0 serial 0/0 etc.


What do you mean by admin down in router serial interface?

admin down basically means that an adminstrator shutdown the interface for any number of reasons, and if the admin wanted to, they could bring it back up with the 'no shutdown' command.


What is a serial interface on a router used for?

a serial interface on a router is basically used for WAN communications. we generally connect to other routers through internet using serial interface. In a lab scenario we generally emulate WAN connections by connecting the serial interfaces of the routers using a cable called DCE/DTE cable.


Why set clock rate in router?

To configure the clock rate for the hardware connections on serial interfaces such as network interface modules (NIMs) and interface processors to an acceptable bit rate, use the clock rate interface configuration command. Use the no form of this command to remove the clock rate if you change the interface from a DCE to a DTE device. Using the no form of this command on a DCE interface sets the clock rate to the hardware-dependent default value.


Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?

HDLC


What equipment does the DCE end of the serial cable usually connect?

It would connect to the serial port interface of a router.


What common transmission parameters must be established for a serial printer interface?

The serial port must be configured for speed, parity type, character frame and protocol.


What command is used to set data speed on a router's serial port to 56 kbps?

The command is: clock rate 56000 So it will appear on the command line interface as: Router(config-if)# clock rate 56000 Reference: Networking by Jeffrey Beasley Chapter 6 page 216.


Which command can be used to identify the serial number of a Cisco router?

show invetory y


Which command sets the encapsulation on a Serial interface back to the Cisco default?

encapsulation hdlc


Two routers are connected via their serial ports in a lab environment The routers are configured with valid IP addresses but they cannot ping each other The show interface serial00 command shows t?

lmfao you really thought you where going to get the answer


Identify the command that will allow the cisco ios software to return to the default lmi type on interface serial 0-1 the lmi command is already set to the lmi type defined jointly by cisco and three?

Router(config-if)#no frame-relay lmi-type cisco


What are the three best ways to see if your routers serial port is dce or dte end?

1. The command show controllers serial [interface number]can be used to determine whether your serial interface is a DCE or DTE interface. An abbreviated listing of the displayed results for the show controllers serial 0 command is shown. The Serial0/0 interface is a V.35 DCE cable. This command should be used when you have an RJ-45 connection.2. The V.35 cables are typically labeled to indicate whether they are a DTE or DCE cable.3. Inspect the end of the V.35 cable to determine whether it is made (DTE) or female (DCE)


What should you do if Router R2 is configured properly and all interfaces are functional Router R1 has been installed recently Host A is unable to ping host B?

Configure a static route on R1 using the IP address of the serial interface on R1. Configure a default route on R1 with the exit interface Fa0/0 on R1. Configure a static route on R1 using the IP address of S0/0/0 on R2. Configure a default route on R1 using the IP address of Fa0/0 on R2.


Which two commands can a technician use to determine whether router serial ports have ip addresses that are assigned to them?

"show interfaces" "show ip interface brief"


What is the effect of configuring the ip bandwidth percent eigrp command?

EIGRP will use up to 50 percent of the bandwidth of a link, as defined by the bandwidth interface configuration command. This command may be used if some other fraction of the bandwidth is desired. Note that values greater than 100 percent may be configured. The configuration option may be useful if the bandwidth is set artificially low for other reasons.ExamplesThe following example allows EIGRP to use up to 75 percent (42 kbps) of a 56-kbps serial link in autonomous system 209:interface serial 0bandwidth 56ip bandwidth-percent eigrp 209 75


Does bluetooth use parallel interface?

No, bluetooth is a serial interface.


What Serial ports on a computer can be configured as?

com1,com2 com3


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