[单项选择]What does Peter do?（）
A. He's good at fixing things.
B. He can speak good German.
C. He does the washingup after supper
D. He's a language teacher.

[单项选择]Hello, Peter. What do you do?（）
A. I am fine. 
B. I am not sick. 
C. I am a student from Bonn University. 
D. I came from Bonn University.

[单项选择]What does a router do?（）
A. Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)
B. Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)
C. Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)
D. Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)

[单项选择]What does your father do?（）
A. He is cleaning the street
B. He is forty
C. He is a farmer
D. He is all right

[单项选择]What does the TRUNCATE statement do?（）
A. Removes the table
B. Removes all rows from a table
C. Shortens the table to 10 rows
D. Removes all columns from a table
E. Removes foreign keys from a table

[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]What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?（）
A. It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.
B. It sends a copy of its neighbor table to all adjacent routers.
C. It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.
D. It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.

[单项选择]What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert（）.
A. It will abort the transmission and set off an audible alarm that must be manually reset
B. It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation
C. It will initiate the DSC distress alert and default information will automatically be transmitted
D. It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation

[单项选择]What does the FORCE option for creating a view do?（）
A. creates a view with constraints
B. creates a view even if the underlying parent table has constraints
C. creates a view in another schema even if you don't have privileges
D. creates a view regardless of whether or not the base tables exist

[单项选择]What does a Layer 2 switch do if it receives a frame with a destination MAC address that is not found in its MAC address table?（）
A. The frame is dropped.
B. The frame is addressed with a broadcast MAC address and sent out all ports.
C. The frame is sent out all ports except the receiving port.
D. An ARP request is sent out all ports except the receiving port.
E. A destination unreachable message is sent back to the source address.
F. None of the above.

[单项选择]What does locating mean? （）
A. Paging of a mobile in more than one cell
B. Best cell selection
C. Changing of cell parameters
D. Roaming
E. Tuning

[单项选择]What does this news item mainly talk about

[单项选择]What does the paragraph following the passage most likely discuss
A. The causes leading to war.
B. Destruction caused by wars.
C. How to prevent warn.
D. Detailed description of certain wars.