网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
The Network Coordination Station for the INMARSAT-A coast stations in the Pacific ocean region is in（）.
A
Yamaguchi, Japan
B
Beijing, China
C
Nakhodka, Russia
D
Perth, Australia
参考答案
参考解析
解析：
暂无解析
更多 “单选题The Network Coordination Station for the INMARSAT-A coast stations in the Pacific ocean region is in（）.A Yamaguchi, JapanB Beijing, ChinaC Nakhodka, RussiaD Perth, Australia” 相关考题
考题
【An overall cellular network contains a number of different elements from the base transceiver station (BTS) itself with its antenna back through a base station controller (BSC), and a mobile switching centre (MSC) to the location registers (HLR and VLR) and the link to the public switched telephone network (PSTN). Of the units within the cellular network, the BTS provides the direct communication with the mobile phones. There may be a small number of base stations then linked to a base station controller. This unit acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call. The links between the BTS and the BSC may use either land lines of even microwave links. Often the BTS antenna towers also support a small microwave dish antenna used for the link to the BSC. The BSC is often co-located with a BTS. The BSC interfaces with the mobile switching centre. This makes more widespread choices about the routing of calls and interfaces to the land line based PSTN as well as the HLR and VLR.】 From the paragraph above, in a cellular network, the （98） can provide direct communication with a mobile phone, the （99） acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call.（100） can be used to link the BSC with related BTS。A. BSC B. BTS C. MSC D. VLR A. BSC B. BTS C. MSC D. HLR A. Land lines B. Microwave links C. Microwave dish antenna D. Land lines or microwave links
考题
在SNMP协议中,NMS(Network Management Station) 向代理(Agent)发出的报文有哪些。( )
A、GETB、GET NEXTC、SETD、REQUEST
考题
The Muster List ("Station Bill") of a ship must be signed by the ______.A.person in chargeB.Coast Guard marine inspection officerC.company safety directorD.entire crew
考题
The data travels from the ______ to the INMARSAT Network Coordination Station（NCS）and then down to the SES's on ships at sea．A.VHFB.SARTC.NAVTEXD.LES
考题
When the GMDSS Radio Operator on watch hears“SECURITE”spoken three times he can expect to receive a message concerning ______．A.The safety of navigation or important meteorological warningsB.The safety of a vessel or a person is in jeopardyC.A vessel in need of immediate assistanceD.A coast station traffic list
考题
下面INMARSAT-A和INMARSAT-C哪种说法不正确：（）A、INMARSAT-A和INMARSAT-C卫星覆盖区相同，但洋区码不同B、INMARSAT-A和INMARSAT-C相同的卫星C、INMARSAT-A和INMARSAT-C相同的CES，识别码不同D、INMARSAT-A和INMARSAT-C信道，频率间隔不同
考题
You are the network administrator for ExamSheet.net. You install Windows 2000 Professional on your portable computer. You use a docking station for your portable computer when you are in the office. You install a ISA-based network adapter in your docking station. You insert your computer into the docking station and start the computer. The network adapter is not detected during the startup process. You obtain a disk that contains the supported driver from the network adapter manufacturer. You want to allow Windows 2000 Professional to use the network adapter. What should you do?（）A、Restart the computer in the docking station.B、Run the Add/Remove Hardware wizard.C、Use Device Manager to scan for hardware changes.D、Copy the network adapter driver to the Winnt/Driver Cache/i386 folder.E、Install the new network adapter driver.
考题
单选题DSC distress relays can be transmitted by either（）or（）.A
a coast station/a ship stationB
an EPIRB/a SARTC
ARQ/FECD
a back-up satellite/a land SAR unit
考题
单选题The distress message of a ship should include considerable information which might facilitate the rescue. This information should（）.A
ALWAYS be included in the initial distress messageB
be sent to a Coast Guard station FIRSTC
be transmitted as a series of short messages，if time allowsD
include the vessel's draft
考题
单选题On-scene communications will normally take place between（）.A
ship in distress and assisting unitsB
NCS and RCCC
RCCs and „0n-scene commander‟ or “co-ordinator surface search”D
ship in distress and coast station
考题
单选题General radio communications in the global system are those between（）concerning the management and operation of the ships and may have impact on their safety.A
SAR party and the ship in distressB
SAR authorities and the ship in distress and survival craftC
A ship station and any coast stationD
Ship stations and shore-based communication network
考题
单选题If a ship station relays a DSC distress call to an appropriate coast station, it means that（）.A
the ship has received the DSC distress call on a HF frequencyB
the coast station concerned has not acknowledged it within 5 minutesC
the ship will take command of search and rescue in 5 minutesD
A and B
考题
单选题If a DSC distress relay is transmitted from coast station , it will（）.A
indicate the ship in distress that the alert has been receivedB
alert ships in the area of a distress incident that a distress has occurredC
inform other coast station of distress incidentD
repeat the distress alert in 5 minutes
考题
单选题The FEC mode is for（）from（）station to two or more other stations when available.A
receiving messages/one stationB
transmission/ one coast station or shipC
communicating /one shipD
contacting/other
考题
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 A1B
Sea Area A2C
Sea Area A3D
Sea Area A4
考题
单选题How does a coast radio station communicating by HF radio normally identify itself?（）A
By its subscriber numberB
By its call signC
By its MMSID
By its MID
考题
单选题（）can receive MSI sent by coast station.A
A NAVTEX receiverB
An EGC receiverC
MF/HF radio telephoneD
HF radio telephone with NBDP
考题
单选题If EGC receiver shares a same antenna with Inmarsat SES, it means that it can receive MSI（）.A
from any Inmarsat satelliteB
from any appropriate Navtex and EGC stationC
via the satellite the SES is trackingD
from any RCC and coast station
考题
单选题A Coast Guard radiotelephone message about an aid to navigation that is off station is preceded by the word（）.A
PAN-PANB
MAYDAYC
SOSD
SECURITY
考题
单选题How is “radio silence” imposed?（）A
By the On Scene Coordinator (OSC)B
By the Coast Earth Station (CES) controlling the distress communications on that frequencyC
It is imposed by the Public Correspondence Station (PCS) controlling the distress communications on that frequency or channelD
It is imposed by the High Seas Service (HSS) controlling the distress communications on that frequency or channel
考题
单选题Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.A
exchangeB
to exchangeC
exchangingD
exchanged
热门标签
最新试卷