N10-004单项选择题每日一练(2019.01.13)

单项选择题
Which of the following devices allows multiple internal IP addresses to access an external websitewith minimal impact to the network bandwidth?（）
A. Proxy
B. Load balancer
C. Router
D. Bandwidth shaper
单项选择题
Which of the following features is essential in a firewall if it is to support RTP sessions?（）
A. Remote console
B. Statefulness
C. Address translation
D. Zones
单项选择题
A SONET network typically uses which of the following transmission media?（）
A. Single-mode fiber
B. Multimode fiber
C. Copper
D. Wireless
单项选择题
Which of the following devices should an administrator connect to a protocol analyzer in order tocollect all of the traffic on a LAN segment?（）
A.Hub
B.VLAN
C.Router
D.Server
单项选择题
Which of the following protocols can be used to retrieve system and network performance information from a router?（）
A.LDAP
B.IMAP
C.TFTP
D.SNMP