What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?（）A、lowest port MAC addressB、port priority number and MAC address.C、VTP revision numberD、highest port priority number.E、path cost

题目

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?（）

A、lowest port MAC address
B、port priority number and MAC address.
C、VTP revision number
D、highest port priority number.
E、path cost

如果没有搜索结果或未解决您的问题，请直接联系老师获取答案。

相似问题和答案

第1题：

Q4 :

int iVal1 = 0, iVal2 = 0;

int * ipVal;

ipVal = &iVal1; What is the Value of ipVal = *ipVal =

ipVal = (int*)iVal1; What is the Value of ipVal = *ipVal =

iVal2 = (int)&iVal1; What is the Value of ipVal = *ipVal =

正确答案：

第2题：

Which of the following is primarily used for VoIP?()

A.TLS

B.RDF

C.NTP

D.RTP

参考答案：D

第3题：

What does VAT stand for?

A. Value-Assist Tag

B. Value-Added Tax

C. Value-Added Tag

D. Value-Assist Tax

正确答案：B

第4题：

What are two things that an access point （AP） does when it receives an 802.11 frame from a Wi-Fi Multimedia （WMM） client？（）

A、EAP-FASTEAP-FAS Access Point Protocol （LWAPP） packet is used to generate an 802.1 p priority value in the packets， which are sent to an Ethernet switch by the controllers.
B、The AP will police the 802.1 le priority value to ensure it does not exceed the maximum value allowed for the QoS policy that is assigned to that client.
C、Once the LWAPP packet is received， the AP generates the IEEE 802.1 p priority value.
D、The AP will map the 802.11e priority value to the DSCP value.
E、The AP will map the DSCP value to the outer LWAPP frame.

正确答案:B,D

第5题：

IP routing protocols， such as OSPF and Enhanced EIGRP， are used primarily in network designs that contain entry and exit points to the network from service providers. What is a common trait of IP routing protocols？（）

A、 They add needed overhead in smaller deployments.
B、 They are essential for optimum and redundant forwarding.
C、 They are used primarily in larger network designs，to support different networks and single entry and exit points.
D、 They are usually necessary in smaller deployments.

正确答案:C

第6题：

A BGP connection is being established.What happens if the local router and the peer router do NOT have the same hold－time value configured?()

A. The BGP session does not establish.

B. The hold time is assumed to be infinite.

C. The larger of the two hold-time values is used.

D. The smaller of the two hold-time values is used.

参考答案：D

第7题：

What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?()

A.Check

B.Range

C.Referential

D.Informational

参考答案：A

第8题：

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?

A. path cost

B. lowest port MAC address

C. VTP revision number

D. highest port priority number

E. port priority number and MAC address

F. None of the above

正确答案：A
A 解析：Explanation:
At the conclusion of the root bridge election process, the switches move on to selecting Root Ports. The Root Port of a bridge is the port that is closest to the Root Bridge in terms of Path Cost.

Every non-Root Bridge must select one Root Port. Again, bridges use the concept of cost to measure closeness. As with some routing metrics, the measure of closeness using STP is not necessarily reflected by hop count. Specifically, bridges track what is referred to as Root Path Cost, which is the cumulative cost of all links to the Root Bridge.

第9题：

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-treetopology?（）

A、lowest port MAC address
B、port priority number and MAC address.
C、VTP revision number
D、highest port priority number.
E、pathcost

正确答案:E

第10题：

Which of these statements about penultimate hop popping are true？（）

A、It is used only for directly connected subnets or aggregate routes
B、It can only be used with LDP.
C、It is only used when two or more labels are stacked.
D、It enables the Edge LSR to request a label pop operation from Its upstream neighbors
E、It is requested through TDP using a special label value that is also called the implicit-null value.
F、It is requested through LDP using a special label value that is also called the implicit-null value.

正确答案:D,E,F

What value is primarily used to

题目

相似问题和答案

更多相关问题

相关内容