单选题（）is an area within the radiotelephone coverage of at least one VHF coast station in which continuous Digital Selective Calling is available.ASea Area A1BSea Area A2CSea Area A3DSea Area A4
单选题
（）is an area within the radiotelephone coverage of at least one VHF coast station in which continuous Digital Selective Calling is available.
A
Sea Area A1
B
Sea Area A2
C
Sea Area A3
D
Sea Area A4
参考解析
解析：
暂无解析
相关考题：
An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）A. stub areaB. transit areaC. border areaD. not-so-stubby area
What is defined as and area, excluding sea areas A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available?A.Ocean Area Regions AOR-E, AOR-W, POR or IORB.Sea Area A3C.Sea Area A4D.Coastal and Inland Waters
You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）A. Internal routers within the backbone area (area 0)B. Internal routers within the NSSAsC. Internal routers within the stubby areasD. ASBRsE. ABRsF. DRs and BDRs
Which statement is TRUE concerning protection of double bottom tanks against excessive pressure?A.Each vent for the tank must be equal to the area of the tank filling lineB.The tanks must be protected by overflowsC.The total area of the vents or the overflow shall be at least equal to the area of the fill lineD.There must be twice as much vent area as the area of the fill line
The Master of a vessel berthed，moored or anchored within the area of jurisdiction and who wishes to move his vessel to another berth，mooring or anchorage within that area ______ from‘Bahrain Port Control’prior to moving．A.shall not request permissionB.shall request permissionC.shall，if in convenience，request permissionD.shall send his permission to the Harbour Master
Which three statements about OSPF areas are true?（）A、Areas introduce a boundary on the link - state updates.B、Areas are logical definitions specific to any given router.C、All routers within an area have the exact link - state database.D、The calculation of the Dijkstra algorithm on a router is limited to changes within an area.E、The area designated router will always have a priority of 0.
You want to suppress advertisement of all routes within the 200.200.0.0/16 range to your OSPFneighbors in other areas. Which configuration accomplishes this goal?（）A、[edit protocols ospf area area-id] area-range 200.200.0.0/16 discard;B、[edit protocols ospf area area-id] area-range 200.200.0.0/16 restrict;C、[edit protocols ospf area area-id] area-range 200.200.0.0/16 no-summary;D、[edit protocols ospf area area-id] area-range 200.200.0.0/16 suppress;
You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）A、Internal routers within the backbone area (area 0)B、Internal routers within the NSSAsC、Internal routers within the stubby areasD、ASBRsE、ABRsF、DRs and BDRs
Which three statements about BGP confederation and route reflectors are true？ （）A、Clusters are used in confederation schemes to avoid loops.B、BGP network can have a confederation within a route reflector area.C、An internal BGP network cannot have a route reflector within a confederation.D、An internal BGP network can have a route reflector within a confederation.E、Clusters are used in route reflector schemes to avoid loops.F、BGP network cannot have a confederation within a route reflector area.
Which of the following is true about an OSPF area border router (ABR)?（）A、The ABR must have multiple interfaces connected to the backbone areAB、An ABR is a router with two interfaces, each connected to a different nonbackbone areAC、The only requirement to be considered an ABR is at least one interface connected to the backbone areAD、An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
When conducting a wireless voice site survey， which two sizing considerations exist for thecoverage cell？（）A、rogue access point detection in the coverage areaB、multipath issues in the coverage areaC、number of VoWLAN users in the coverage cellD、call capacity requirements of the coverage area
When installing a wireless network in a large area, which of the following is the FIRST thing thatshould be considered when trying to get the MOST coverage?（）A、SSID namingB、Device placementC、Encryption methodsD、Channel selection
What type of router cannot exist within a stub area？（）A、 ABRB、 ASBRC、 internal routerD、 non-backbone router
An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）A、stub areaB、transit areaC、border areaD、not-so-stubby area
单选题（） is a defined area within which ships must use particular caution and should follow the recommended direction of traffic flow.ARecommended Direction of Traffic FlowBRoundaboutCSeparation Zone or LineDPrecautionary Area
单选题At least（）two-way VHF radiotelephone apparatus shall be provided on every cargo ship of 300 tons gross tonnage and upwards but less than 500 tons gross tonnage.AoneBtwoCthreeDfour
多选题Which three statements about OSPF areas are true?（）AAreas introduce a boundary on the link - state updates.BAreas are logical definitions specific to any given router.CAll routers within an area have the exact link - state database.DThe calculation of the Dijkstra algorithm on a router is limited to changes within an area.EThe area designated router will always have a priority of 0.
单选题You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）AInternal routers within the backbone area (area 0)BInternal routers within the NSSAsCInternal routers within the stubby areasDASBRsEABRsFDRs and BDRs
单选题An OSPF non-backbone area allows external routes to be flooded within the area. These external routes are propagated into other areas. However， external routes from other areas are not allowed to enter this area. Which type of SPF area does this describe？（）Astub areaBtransit areaCborder areaDnot-so-stubby area
单选题The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.AMate's licenseBRestricted radiotelephone operator permitCSecond-class radio operator's licenseDSeaman's document
单选题Which of the following is true about an OSPF area border router (ABR)?（）AThe ABR must have multiple interfaces connected to the backbone areABAn ABR is a router with two interfaces, each connected to a different nonbackbone areACThe only requirement to be considered an ABR is at least one interface connected to the backbone areADAn ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
单选题Which statement is TRUE concerning protection of double bottom tanks against excessive pressure? （）AEach vent for the tank must be equal to the area of the tank filling lineBThe tanks must be protected by overflowsCThe total area of the vents or the overflow shall be at least equal to the area of the fill lineDThere must be twice as much vent area as the area of the fill line
单选题By regulation，you MUST keep a record of the use of your radiotelephone for at least（）.Aone monthBfour monthsCsix monthsDone year