CCNA（200-301）近期考试新题03

小乔

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1 A network engineer must create a diagram of a multivendor network.which command must
be configured on the Cisco devices so that the topology of the network can be mapped?
A Device(config)#lldp run
' C0 M& \7 C. O+ \7 fB Device(config)#cdp run
C Device(config)# cdp enable
! v  b+ x1 E. `) t6 ~; N: z9 ]D Device(config)# flow-sampler-map topology
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2 How do TCP and UDP differ in the way they provide reliability for delivery of packets?
A TCP does not guarantee delivery or error checking to ensure that there is no corruption of data;
UDP provides message acknowledgement and retransmits data if lost.
" K. u, N6 P: N- iB TCP provides flow control to avoid overwhelming a receiver by sending too many packets at
once; UDP sends packets to the receiver in a continuous stream without checking for sequencing.
C TCP uses windowing to deliver packets reliably; UDP provides reliable message transfer
between hosts by establishing a three-way handshake.
D TCP is a connectionless protocol that does not provide reliable delivery of data; UDP is a
connection-oriented protocol that uses sequencing to provide reliable delivery.


/ ~% |4 F& @, v$ s7 g. _( p1 @3 which command must be entered when a device is configured as an NTP server?
A ntp master
B ntp sever
1 }7 g$ ~/ S. N' iC ntp authenticate
D ntp peer
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4 which two minimum parameters must be configured on an active interface to enable OSPFv2
. _0 R; Q) p5 h- zto operate?(choose two)
, B4 f7 \- {/ U! ]! t& \/ V" D+ fA IPv6 address
B OSPF process ID
C OSPF MD5 authentication key
4 p5 D- `+ e/ N; Z1 D' ]1 P3 S4 eD OSPF stub flag
& Q( T. o, w( N7 @6 e9 GE OSPF area
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; R' \' A1 Z0 i) W) x+ D5 What are two roles of the Dynamic Host Configuration Protocol (DHCP)? (Choose two.)
- s9 E& m. @& e! [, ~0 q" `  ^A The DHCP client maintains a pool of IP addresses it can assign.
B The DHCP server assigns IP addresses without requiring the client to renew them.
C The DHCP client can request up to four DNS server addresses.
$ F5 _- r5 G: c5 p3 q! @D The DHCP server offers the ability to exclude specific IP addresses from a pool of IP addresses
E The DHCP server leases client IP addresses dynamically
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6 z( r$ e2 }3 d: ^, |+ a  k来源: CCNA（200-301）近期考试新题02

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