CCNA系列認證章節(jié)練習(xí)(2020.06.10)

多項選擇題
Which two statements are characteristics of a distance vector routing protocol?（）
A.RIP is an example of distance vector routing protocols
B.Updates are periodic and include the entire routing table
C.Routing updates are sent only after topology changes
D.The protocol can be useful in hub-and-spoke and hierarchical networks
E.Convergence is usually faster than with link state protocols
F.Each router has its own view of the topology
多項選擇題
下列算法中哪些是對稱密鑰算法（）
A.DES
B.3DES
C.AES
D.SEAL
多項選擇題
A network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?（）
A.ARP
B.CDP
C.DHCP
D.DNS
E.ICMP
單項選擇題
Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?（）
A.100 meters
B.100 feet
C.100 yards
D.200 meters
單項選擇題
In which of these phases is a customer’s current network infrastructure assessed？（）
A. Plan
B. design
C. implement
D. prepare
單項選擇題
A company implements video conferencing over IP on their Ethernet LAN. The users notice that the network slows down, and the video either stutters or fails completely. What is the most likely reason for this?（）
A. minimum cell rate (MCR)
B. quality of service (QoS)
C. modulation
D. packet switching exchange (PSE)
E. reliable transport protocol (RTP)
多項選擇題
哪兩個條件有助于您從各種網(wǎng)絡(luò)介質(zhì)當(dāng)中選擇一種網(wǎng)絡(luò)介質(zhì)？（）
A.網(wǎng)絡(luò)上使用的終端設(shè)備的成本
B.所選介質(zhì)可以成功傳送信號的距離
C.需要優(yōu)先處理的數(shù)據(jù)類型
D.安裝在網(wǎng)絡(luò)中的中間設(shè)備的數(shù)量
E.要安裝所選介質(zhì)的環(huán)境
單項選擇題
Which option ensures that data is not modified in transit？（）
A.Authorization
B.Confidentiality
C.Authentication
D.Integrity
單項選擇題
中繼器工作于OSI參考模型的哪一層？（）
A.傳輸層
B.網(wǎng)絡(luò)層
C.數(shù)據(jù)鏈路層
D.物理層
多項選擇題
What are the two benefits of any intelligent network that uses a systems-level approach to integrate applications and services across an infrastructure？（）
A. reduce complexity
B. reduced costs for all types of users
C. packet inspection at wire speed
D. QoS to the desktop
E. LAN encryption services

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CCNA系列認證章節(jié)練習(xí)(2020.06.10)

Which two statements are characteristics of a distance vector routing protocol?（）

下列算法中哪些是對稱密鑰算法（）

A network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?（）

Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?（）

In which of these phases is a customer’s current network infrastructure assessed？（）

A company implements video conferencing over IP on their Ethernet LAN. The users notice that the network slows down, and the video either stutters or fails completely. What is the most likely reason for this?（）

哪兩個條件有助于您從各種網(wǎng)絡(luò)介質(zhì)當(dāng)中選擇一種網(wǎng)絡(luò)介質(zhì)？（）

Which option ensures that data is not modified in transit？（）

中繼器工作于OSI參考模型的哪一層？（）

What are the two benefits of any intelligent network that uses a systems-level approach to integrate applications and services across an infrastructure？（）

CCNA系列認證章節(jié)練習(xí)(2020.06.10)

Which two statements are characteristics of a distance vector routing protocol?（）

下列算法中哪些是對稱密鑰算法（）

A network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?（）

Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?（）

In which of these phases is a customer’s current network infrastructure assessed？（）

A company implements video conferencing over IP on their Ethernet LAN. The users notice that the network slows down, and the video either stutters or fails completely. What is the most likely reason for this?（）

哪兩個條件有助于您從各種網(wǎng)絡(luò)介質(zhì)當(dāng)中選擇一種網(wǎng)絡(luò)介質(zhì)？（）

Which option ensures that data is not modified in transit？（）

中繼器工作于OSI參考模型的哪一層？（）

What are the two benefits of any intelligent network that uses a systems-level approach to integrate applications and services across an infrastructure？（）

In which of these phases is a customer’s current network infrastructure assessed？（）

哪兩個條件有助于您從各種網(wǎng)絡(luò)介質(zhì)當(dāng)中選擇一種網(wǎng)絡(luò)介質(zhì)？（）

Which option ensures that data is not modified in transit？（）

中繼器工作于OSI參考模型的哪一層？（）

What are the two benefits of any intelligent network that uses a systems-level approach to integrate applications and services across an infrastructure？（）