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Share some CCNA Routing and Switching 200-125 exam questions and answers below.
What are three characteristics of the TCP protocol? (Choose three.)
A. It uses a single SYN-ACK message to establish a connection.
B. The connection is established before data is transmitted.
C. It ensures that all data is transmitted and received by the remote device.
D. It supports significantly higher transmission speeds than UDP.
E. It requires applications to determine when data packets must be retransmitted.
F. It uses separate SYN and ACK messages to establish a connection.
Answer: BCF
What feature uses a random time to re-sent a frame?
A. CSMA/CA
B. CSMA/CD
Answer: B
You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the max number of subnets.
Which network address and subnet mask meet this requirement?
A. 192.168.252.8 255.255.255.248
B. 192.168.252.8 255.255.255.252
C. 192.168.252.16 255.255.255.240
D. 192.168.252.0 255.255.255.252
E. 192.168.252.16 255.255.255.252
Answer: A
Which two commands can be used to verify a trunk link configurationt status on a given cisco switch? (Choose two)
A. show interfaces interface
B. show interfaces trunk
C. show interfaces switchport
D. show ip interface brief
E. show interfaces vlan
Answer: BC
What are two requirements for an HSRP group? (Choose two.)
A. exactly one active router
B. one or more standby routers
C. one or more backup virtual routers
D. exactly one standby active router
E. exactly one backup virtual router
Answer: AD
Which three statements accurately describe layer 2 Ethernet switches?(choose three)
A. Micro segmentation decreases the number of collisions on the network.
B. if a switch receives a frame for an unkown destination, it uses ARP to resolve the address.
C. Spanning Tree Protocol allows switches to automatically share vlan information.
D. In a properly functioning network with redundant switched paths, each switched aegment will contain one root bridge with all its ports in the forwarding state. All other switches in that broadcast domain will have only one root port.
E. Establishing vlans increases the number of broadcast domains.
F. Switches that are configured with vlans make forwarding decisions based on both layer 2 and layer 3 address information.
Answer: ADE
Which command can you execute to set the user inactivity timer to 10 seconds?
A. SW1(config-line)#exec-timeout 0 10
B. SW1(config-line)#exec-timeout 10
C. SW1(config-line)#absolute-timeout 0 10
D. SW1(config-line)#absolute-timeout 10
Answer: A
How to create a trunk port and allow VLAN 20? (Choose Three.)
A. switchport trunk encapsulation dot1q
B. switchport mode trunk
C. switchport trunk allowed vlan 20
D. switchport trunk native vlan 20
Answer: ABC
Which function does IP SLA ICMP ECHO operation perform to assist with troubleshooting
A. packet-loss detection
B. congestion detection
C. hop-by-hop response time
D. one way jitter measurement
Answer: C
A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?
A. This is a 10 Mb/s switch port.
B. This is a 100 Mb/s switch port.
C. This is an Ethernet port operating at half duplex.
D. This is an Ethernet port operating at full duplex.
E. This is a port on a network interface card in a PC.
Answer: C
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