A、call for
B、calls for
C、call on
D、call up
第1题:
A. call forth
B. call at
C. call on
D. call off
第2题:
We would like to () you in this research project.
A、draw
B、call on
C、involve
D、call at
第3题:
We planned to( ) some friends for the special occasion.
A、call out
B、call on
C、call over
D、call off
第4题:
A、about
B、for
C、on
D、at
第5题:
We are looking forward () receiving your early reply.
A、for
B、to
C、on
D、upon
第6题:
A、for
B、with
C、on
D、in
第7题:
As there was a power failure in the hospital, the doctor had to ()operation.
第8题:
The Acme company has determined that during its busiest hours, the average number of internal VoIP calls across the WAN link is four (4). Since this is an average, the WAN link has been sized for six (6) calls with no call admission control. What will happen when a seventh call is attempted across the WAN link? ()
第9题:
Which statement is true about the distributed call control in a VoIP network?()
第10题:
When onsite repairing a printer the technicians cell phone rings and it is a personal call, how should the technician handle this?()
第11题:
the seventh call is routed via the PSTN
the call is denied and the original six (6) calls remain
the call is completed and the first call is dropped
the call is completed, but all calls have quality issues
the call is completed but the seventh call has quality issues
第12题:
Employees can receive calls at their desk and cell phone simultaneously.
Customers can call one number to reach all employees.
Employees can have their calls forwarded to the receptionist.
Customers can call any office number and the receptionist receives the call.
第13题:
We ________ many European ports every year
A.call at
B.call for
C.call on
D.call in
第14题:
A single technical term will frequently cover an idea that would otherwise () a long phrase or clause.
A、call for
B、make for
C、allow for
D、stand for
第15题:
We wish to call your attention to the validity of the L/C, since there is no possibility of L/C extension.()
第16题:
I invited them _____ our house the next week.
A. to call for
B. to call at
C. calling on
D. calling for
第17题:
In response _________ her call, I mailed her.
A. for
B. with
C. to
D. on
第18题:
A. Answer the call to determine its importance.
B. Ignore the call and return the call from a land line.
C. Answer the call and leave the location in order to talk.
D. Silence the phone and allow the call to go to voice mail.
第19题:
Which statement is true about a distributed call control environment and the processing of dialed digits from an IP phone?()
第20题:
A person calls in asking for the name of the vendor that the technician uses for the organizations firewall hardware. Which of the following is the BEST action for the technician to take?()
第21题:
Which sequence of messages demonstrates the communications between the LAC and LNS when theyestablish an L2TP session?()
第22题:
What is the primary benefit of Single Number Reach?()
第23题:
The router that is directly connected to the IP phone will look up the called number in its call routing table.
The router that is directly connected to the IP phone will inform its call agent when a service request is detected.
When the IP phone is picked up,the IP phone initiates the service request.
The directly connected router passes the collected digits to its call agent,and the call agent looks up in its call-routing table the called number.