[单项选择]which address range efficiently summarizes the routing table of the addresses for router main?（）
A. 172.16.0.0/18
B. 172.16.0.0/16
C. 172.16.0.0/20
D. 172.16.0.0/21

[单项选择]which address range efficiently summarizes the routing table of the addresses for router main?（）
A. 172.16.0.0/18
B. 172.16.0.0/16
C. 172.16.0.0/20
D. 172.16.0.0/21

[单项选择]Cisco Small Business products address which installation requirement more effectively than standard Cisco products?（）
A. wireless technology integration
B. use of advanced reporting functions
C. VPN technology integration
D. minimal technical complexity

[单项选择]What is the administrative scoping address range associated with global scope?（）
A. 224.0.0.0/24
B. 239.128.0.0/10
C. 239.192.0.0/14
D. 224.0.1.0-238.255.255.255

[单项选择]What is the address range associated with the link-local scope?（）
A. 224.0.0.0/24
B. 239.128.0.0/10
C. 239.192.0.0/14
D. 224.0.1.0-238.255.255.255

[单项选择]In JUNOS software, which would prevent an OSPF router from importing the 10.0.0.4/30 summaryroute?（）
A. Import policies are not allowed for internal routes, so this is not possible.
B. Export policies are not allowed, so this is not possible.
C. Apply a firewall filter matching 10.0.0/4/30 and reject the route.
D. Apply an import policy matching 10.0.0.4/30 and reject the route.

[单项选择]What is the IP address range for the first octet in a class B address, in binary form?（）
A. 00000111-10001111
B. 00000011-10011111
C. 10000000-10111111
D. 11000000-11011111
E. 11100000-11101111
F. None of the above

[单项选择]Which command clears the history of BGP damped routes?（）
A. clear bgp damping
B. clear bgp neighbor
C. clear bgp neighbor damp
D. clear protocol bgp damp

[单项选择]Given the IP address range 192.168.100.0 through 192.168.100.255, which network mask segments these addresses into 16 subnets?（）
A. 255.255.255.224
B. 255.255.255.240
C. 255.255.255.248
D. 255.255.255.252

[单项选择]Which CLI command is used to upgrade a Juniper router?（）
A. load package
B. load override terminal
C. request system software add
D. request system software upgrade

[多项选择]Which two statements are true about terms in a routing policy?（）
A. A then statement is mandatory in a term
B. If a term does not contain a from statement, all routers match
C. If a term does not contain a from statement, the Junos OS will not commit
D. A then statement is not mandatory in a term

[多项选择]Which three IP multicast address related statements are true?（）
A. Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3
B. Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget her
C. Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1
D. Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers
E. The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses
F. Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA

[单项选择]Geographic range is the maximum distance at which a light may be seen under（）.
A. existing visibility conditions，limited only by the curvature of the Earth
B. perfect visibility conditions，limited only by the curvature of the Earth
C. existing visibility conditions，limited only by the intensity of the light
D. perfect visibility conditions，limited only by interference from background lighting

[多项选择]Which three options are supported as address allocation mechanisms for DHCP on Cisco routers?（）
A. The IP address can be automatically assigned to a host.
B. The IP address can be assigned as a random hash value of the burned - in - address of the lowest - numbered LAN interface on the router.
C. The network administrator can assign a speci fic IP address to a specific host MAC address.
D. The IP address can be assigned from configured pools in a reverse lexicographical order.
E. The IP address can be assigned to a host for a limited time or until the host explicitly releases the address.
F. The IP address can be assigned to a host until the host usurps the assigned value using its own dynamic override mechanism.

[单项选择]Which of the following routing components is used for sending messages to other SMTP hosts？（）
A. Routing group
B. Send connector
C. DNS
D. Delivery agent

[多项选择]Which of the following describe private IP addresses (Choose two.)（）。
A. addresses chosen by a company to communicate with the Internet
B. addresses that cannot be routed through the public Internet
C. addresses that can be routed through the public Internet
D. a scheme to conserve public addresses
E. addresses licensed to enterprises or ISPs by an Internet registry organization