2017上半年网络工程师考试即将开始，希赛小编为大家整理了一套网络工程师考试试题，希望对大家有所帮助。
1.In the following essay，each blank has fourchoices.Choose the best answer and write down on thean，swer sheet.
Microwave communication uses(1)frequency radio waves that travel instraighdine sthroughthe air.Because the waves cannot(2)with the curvature of the earth，they can be(3)onlyover short distance.Thus，microwave is a good(4)for sending data between bulldingsin a city or on a large college campus.For longer distances，the waves must berelayed by means of“dishes”or(5).These can be installed on towers，highbuildings，and mountain tops.
(1)A.high
B.10w
C.1ong
D.short
(2)A.reflex
B.distort
C.bend
D.absorb
(3)A.transmitted
B.transformed
C.converted
D.delivered
(4)A.material
B.equipment
C.medium
D.channel
(5)A.repeaters
B.radars
C.telephones
D.antennas
2.(1)In the strength of the carrier signal is varied to represent binary1 or 0.
(2)is a system that can map a name to an address and conversely an addressto an name.
(3)is a three-way handshaking authentication protocol that it's packets areencapsulated inthe point-to-point protocol
(4)is an approach that enables an ATM Switch to behave like a LAN switch.
(5)is an guided media which is made of glass or plastic and trans mitssignals in the form of light.
(1)A.ASK
B.PSK
C.FSK
D.FDM
(2)A.NAT
B.NCP
C.DDN
D.DNS
(3)A.PPP
B.PAP
C.CHAP
D.LCP
(4)A.VLAN
B.LANE
C.VPN
D.IPOA
(5)A.Coaxial cable
B.Optical fiber
C.Unshielded Twisted-pair Cable
D.Shielded Twisted-pair Cable
希赛网，拥有十五年软考培训经验，希赛网一直坚持自主研发，将丰富的软考培训经验有效融入教程研发过程，自成体系的软考在线题库（软考历年真题）、软考培训教材和软考视频教程，多样的培训方式包括面授、和，使考生的学习更具系统性，辅导更具针对性。采用全程督学机制，。
