Valid CCNA Routing and Switching 200-125 real exam questions

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Share some CCNA Routing and Switching 200-125 exam questions and answers below.
Which of the following describes the roles of devices in a WAN? (Choose three.) 
A. A CSU/DSU terminates a digital local loop. 
B. A modem terminates a digital local loop. 
C. A CSU/DSU terminates an analog local loop. 
D. A modem terminates an analog local loop. 
E. A router is commonly considered a DTE device. 
F. A router is commonly considered a DCE device. 
Answer: A,D,E

If you are configuring syslog messages specifying `logging trap warning', which log messages will the router send? 
A. 0-4 
B. 0-5 
C. 0-6 
D. 0-2 
E. 0-1 
Answer: A 


What 8-bit field exists in IP packet for QoS? 
A. Tos Field 
B. DSCP 
C. IP Precedence 
D. Cos 
Answer: A

Which layer 2 protocol encapsulation type supports synchronous and asynchronous circuis and has built-in security mechanisms? 
A. Frame Relay 
B. HDLC 
C. x.25 
D. PPP 
Answer: D

What feature uses a random time to re-sent a frame? 
A. CSMA/CA 
B. CSMA/CD 
Answer: B

Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two.) 
A. The transport layer divides a data stream into segments and may add reliability and flow control information. 
B. The data link layer adds physical source and destination addresses and an FCS to the segment. 
C. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information. 
D. Packets are created when the network layer adds Layer 3 addresses and control information to a segment. 
E. The presentation layer translates bits into voltages for transmission across the physical link. 
Answer: A,D

What are three parts of an IPv6 global unicast address? (Choose three.) 
A. an interface ID that is used to identify the local host on the network 
B. an interface ID that is used to identify the local network for a particular host. 
C. a subnet ID that is used to identify networks inside of the local enterprise site 
D. a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP 
E. a global routing prefix that is used to identify the portion of the network address provided by a local administrator 
Answer: ACD

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

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