gateway.
hub.
switch.
router.
第1题:
What are two characteristics of Telnet? (Choose two.)()
第2题:
If the PFE does not have a route to the destination address of a packet, which action will be taken?()
第3题:
What is the function of the helper router during a restart event in OSPF?()
第4题:
Regarding PAR (Positive Acknowledgement and Re-transmission), which of the answer choices below are correct?()
第5题:
What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?()
第6题:
Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?()
第7题:
第8题:
permit all packets matching the first three octets of the source address to all destinations
permit all packets matching the last octet of the destination address and accept all source addresses
permit all packets from the third subnet of the network address to all destinations
permit all packets matching the host bits in the source address to all destinations
permit all packets to destinations matching the first three octets in the destination address
第9题:
It compresses the Layer 2 payload and marks the packet as a high priority to be transmitted first
It fragments larger packets and allows VoIP packets to be transmitted in between them.
It stops the transmission of large packets when priority packets arrive.
It sends high priority packets in between normal traffic packets.
第10题:
The ERX router sends an Active Discovery Off ermessage.
The ERX router sendsan Active Discovery Initiation message.
The customer device sends an Active Discovery Offer message.
The customer device sends an Active Discovery Initiation message.
第11题:
The receiver acknowledges the final packet in each communications stream.
The receiver adds sequencing numbers to the packets received.
The sender adds sequencing numbers to the packets it sends.
The receiver acknowledges each packet it receives from the sending device.
第12题:
Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit
The device with the lowest MAC address is permitted to retrannsmit first
The device with the lowest MAC address sends a jam signal to notify all other devices of the collision
Both devices send a jam signal to notify all other devices of the collision
第13题:
Which statement best describes the application of link fragmentation and interleaving (LFI)?()
第14题:
Which two statements are true about TCP communication?()
第15题:
A networking device that sends packets to all connections is a:()
第16题:
What is the effect of the following access list condition access-list 101 permit ip 10.25.30.0 0.0.0.255 any()。
第17题:
Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?()
第18题:
It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.
It sends a copy of its neighbor table to all adjacent routers.
It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.
It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.
第19题:
Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.
The device with the lowest MAC address is permitted to retransmit first.
The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.
Both devices send a jam signal to notify all other devices of the collision.
第20题:
Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit
The device with the lowest MAC address is permitted to retrannsmit first
The device with the lowest MAC address sends a jam signal to notify all other devices of the collision
Both devices send a jam signal to notify all other devices of the collision
第21题:
It sends data in clear text format.
It is no longer supported on Cisco network devices.
It is more secure than SSH
It requires an enterprise license in order to be implemented.
It requires that the destination device be configured to support Telnet connections.
第22题:
The ERX router sends an Active Discovery Offer message.
The ERX router sends an Active Discovery Initiation message.
The customer device sends an Active Discovery Offer message.
The customer device sends an Active Discovery Initiation message
第23题:
The PFE floods the packet out of all interfaces.
The PFE drops the packet and sends a destination unreachable notification back to source device.
The PFE forwards the packet to the routing engine for further processing.
The PFE queues the packet and sends a request for a layer 3 lookup to the routing engine.