单选题
Which of the following devices transmits timed broadcasts onto an active network?（）
Bridge
Unmanaged switch
DHCP client
Firewal
单选题
A demarcation point is usually installed and managed by which of the following providers?（）
Web host provider
VoIP company
Telephone company
Hardware manufacturer
单选题
Which of the following is a secure method of remote access via command line?（）
RCP
Telnet
RSH
SSH
单选题
Which of the following monitors a server to see which protocols might be in use?（）
Ping sweep
Intrusion detection software
Port scanner
Wireless packet sniffer
单选题
Which of the following technologies facilitates the conversion of internal private IP addressing toexternal public IP addressing?（）
DHCP
TCP/IP
NAT
SNMP
单选题
A technician needs to manage a switch by using the management port on the back of the switch.Which of the following cables would the technician use?（）
Straight
Console
Crossover
Loopback
单选题
A technician receives an urgent call that the switch in accounting is down. Which of the followingshould the technician do FIRST to troubleshoot this issue?（）
Identity symptoms and problems
Document the process and solutions
Establish the most probable cause
Escalate if necessary.
单选题
A user reports being occasionally disconnected from the server. Which of the following tools couldthe technician use to determine if it is the client or the server that is dropping the connection?（）
Packet sniffer
Multimeter
Load balancer
Throughput tester
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