2021年下半年网络工程师上午真题及答案解析(八)

　　2021年下半年网络工程师上午考试已结束，今天课课家小编为大家整理了2021年下半年网络工程师上午真题及答案解析(八)。

　　为方便广大考生考后估分对答案，课课家小编特向广大学员和网友搜集整理了2021年下半年网络工程师真题答案，供大家参考。

　　●Network security is the protection of the underlying networkinginfrastructur (71) access, misuse, or theft. It involves creating a secureinfrastructure for device and applications to work in a (72) manner.

　　Network security combines multiple defenses at the edge and in thenetwork. Each network security layer implements(73)controls.Authorized users gain access to network resources. A(74) is a networdevice that monitors incoming and outgoing network traffic and decideswhetherblock specific trffic based on a defined set of security rules. Avirtual (75)encrypts the connection from an endpoint to a network,often over the internet.remote-aceess VPN uses IPsee or Seeure Soekets Layer to aufhenticate thebetween device and network.

　　(71)A.unauthorized B.authorized C.normal D.frequent

　　(72)A.economical B.secure C.fair D.efficient

　　(73)A.computing B.tanstation C. policies D.simulations

　　(74)A.firewall B.router C.gateway D.switch

　　(75)A.public B.private C.personal D.political

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