[单项选择] Router R1 refers to route - map fred when redistributing from EIGRP into OSPF. The entire route - map is listed next. Which of the following answers must be true based on the configuration as shown?（） route - map fred deny 10 match ip address one route - map fred deny 20 match ip address two route - map fred permit 100
A. The third route map clause will allow any routes not already filtered by the first two clauses
B. R outes permitted by ACL "two" will be redistributed
C. Routes denied by ACL "one" will be redistributed
D. All routes will be filtereD

[单项选择] Your ERX Edge Router is using an inbound route-map for an EBGP peer to only accept routes in the range of 192.168.32.0 through 192.168.95.255. The route-map references an access list named test . What accurately accomplishes the goal of the route-map?（）
A. access-list test 192.168.32.0 0.0.63.255
B. access-list test permit 192.168.32.0 0.0.64.255
C. access-list test permit 192.168.32.0 0.0.63.255
D. access-list test permit 192.168.32.0 255.255.63.0

[单项选择]What does a BGP route reflector do when reflecting a route?（）
A. It prepends its cluster identifier to the route's cluster list.
B. It prepends its own originator identifier to the route's cluster list.
C. It replaces the route's cluster identifier with its own cluster identifier.
D. It replaces the route's originator identifier with its originator identifier.

[单项选择] Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which one of the following is true?（）
A. R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.
B. For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.
C. For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.
D. No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.

[单项选择]Router R1 sets a route tag for subnet 10.1.1.0/24 when redistributing from  OSPF into EIGRP.Which of the following unit is assigned to the route tag?（）
A. Kilobits/seconD
B. Tens of microseconds
C. Cost
D. Hop count
E. No unit is assigneD

[单项选择]When the author refers to professions as no longer being "closed guilds", he means that______.
A. it is much easier to become a professional today than it was in the past
B. there is more social intercourse between professionals and others
C. popular science has told their secrets to the world
D. anyone can now understand anything in a profession

[单项选择]Router R1 has been conf igured with an ipv6 route 2000::/64 S0/0/0 64 command.Which of the following does the 64 at the end of the command represent?（）
A. Metric
B. Administrative distance
C. Timeout (seconds)
D. Prefix length
E. Interface ID

[单项选择]Router R1, in ASN 11, learns a BGP route from BGP peer R22 in ASN 22. R1 and then uses BGP to advertise the route to R2, also in ASN 11. What ASNs would you see in the BGP table on R2 for this route?（）
A. 22
B. 11
C. 1
D. None

[单项选择]What happens when a route does not match any user configured policies?（）
A. The route is rejected.
B. The route is accepted.
C. The route is given a lower priority.
D. The route is sent to the default policy.

[多项选择]What are two instances when a WX device route carves? （）(Choose two.)
A. It occurs every 29 hours.
B. Packet interception mode is enabled.
C. The host is unreachable on the local subnet.
D. The subnet is unreachable using the advertised router.

[单项选择]When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）
A. The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.
B. The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C. The LSA is dropped and a message is sent to the transmitting router.
D. The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.

[多项选择]When configuring a scheduler map, which two are referenced?（）
A. Forwarding Class
B. Scheduler
C. Rewrite Rules
D. Priority

[多项选择] When the Catalyst switch R1 is enabled to use VTP，  which information does it advertise on its  trunk ports？（）
A.  VTP mode
B.  STP root status
C.  Negotiation status
D.  Management domain
E.  Configuration revision number

[判断题]电阻R1，R2并联，已知R1＞＞R2，并联后的等值电阻近似等于R1，即R≈R1。

[填空题]电阻R₁和R₂串联，已知R₂＝4R₁，若R₂两端电压U₂=16V，则R₁两端电压U₁＝（）。

[单项选择]Electronic commerce refers to business activities conducted using electronic data transmission via( ).
A. the Internet and World Wide Web
B. telephone
C. magazine
D. newspaper

[多项选择] Routers R1 and R2 are EIGRP neighbors. R1 has been configured with the eigrp stub connected command. Which of the following is true as a result？（）
A. R1 can learn EIGRP routes from R2, but R2 cannot learn EIGRP routes from R1
B. R1 can send IP packets to R2, but R2 cannot send IP packets to R1
C. R2 no longer learns EIGRP routes from R1 for routes not connected to R1
D. R1 no longer replies to R2's Query messages
E. R2n o longer sends to R1 Query messages

[单项选择]如下两个关系R1和R2，它们进行何种运算后得到R3R1

[单项选择]设关系R1有r1个元组，关系R2有r2个元组，则关系R1和R2连接后的结果关系的元组数目是 ______ 个。
A. r1+r2
B. ri*r2
C. ≤r1*r2
D. ≥r1*r2