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On 31/08/2009, at 21:41, 邵战新 <[email protected]> wrote:
Here is my questions about OEQ, and I need your help.
Recently, I got a Open-ended Questions for CCIE RS from www.passccielab.com
,but I think that some of answers don't right.I mail to passccielab,
but he said all answers has been verified. Welcome to discussion.
Thanks.
1.What is used in congestion avoidance, How does it works?
passccielab answer : RED before a queue is full ,traffic is dropped
randomly by RED
My question : why doesn't answer WRED or Tail Drop ?
2.What is the next state of initial in spanning-tree protocol?
passccielab answer : Forwarding
my answer: Blocking
3.username xxx password yyy
username xxx autocommand noescape show running-config
What will user xxx see when he telnet the device?
passccielab answer : he will see the show run output
my answer : because show run need privilege level 15 . he will see
invalid command.
4 which protocol can do virtual mac and ip and prevent xx loss?
passccielab answer : hsrp vrrp
my answer : hsrp vrrp glbp
5 What is protocol the dhcp protocol based?
passccielab answer : udp 67 udp 68
my answer : bootp
6 GTS has three elements, plesae explain the three functions about
GTS.
passccielab answer : to control access to available bandwidth/to
ensure the the traffic conform to the polices established/to
regulate the flow of traffic in order to avoid congestion
my answer : classification / metering / shaping
7 how do i turn off split horizon in ospf?
passccielab answer : configure the area to be a totally-stub
my answer : configure the area to a totally-stub or totally-nssa
8 how the bgp router detect and prevent loops?
passccielab answer : ibgp split horizon / AS-PATH
my answer : IBGP Split Horizon /AS_PATH / cluster-list / Originator-id
9 what are the three main type of networks that must be consider
when defining a security policy?
passccielab answer : ATM / Ethernet /Tunnel
my answer : Trusted / unTrusted / unKnown
10 What are the vies categories of qos tools that make up the qos
framework?
passccielab answer : MQC CAR NBAR PBR ACL
my answer : classification & Marking tools / congestion avoiding
tools / congestion management tools / policing & shaping tools /
link efficiency tools
11 router bgp 19
nei 192.168.6.6 maximun-prefiex 1000
what are the functions of this command
passccielab answer : the bgp router which as is 19 has a neibhbor
192.168.6.6, when it receive the route from the peer, if it has more
than on the same route to the destination, it will be load balance,
it have at most 1000 entry into the ibgp routing table
my answer : under as 19 ,the max number of prefix learning from
192.168.6.6 are 1000. If learning prefix exceed 1000 , router will
terminate neighbor 192.168.6.6
12 all switches mode are client, if you modify the domain of one of
the switches, what effect it will happen?
passccielab answer : the switch modify the domain , but it can't get
the infor of vlan. the switch of client mode only get info from the
switches of server mode.
my answer : the modified switch reversion change to 0.
13 what conditions pruning of vtp will not enable
passccielab answer : server / off
my answer : off (cat os)
14 What is IOS feature limit or controls traffic on a catalyst
interface?
passccielab answer : flow-control
my answer : storm control
15 Which layers featured is used in OSI and TCP/IP model
passccielab answer : osi 1-5 / tcpip 1-3
my answer : osi 2-7 / tcpip 2-4
16 How many commands required for establish ibgp neighbors in 4
routers?
passccielab answer : include the command router bgp xxx total is 12
command line , or else
my answer : full-mesh include command router bgp xxx total is 16.
Frankly, I don't know how to count 12 command line on establishing
ibgp neighbor
17 What is means about an physical interface's status () in
EtherChannel(Pagp Encapsulation) ?
passccielab answer : the physical interface down
my answer : the port is waiting for another port's negotiation packet.
I also have some question as follow.
1.What is different between WRR and SRR?
2.what is function about AAA authentication login?
3.Why does Traffic Engine make outbound direction?
4.If you created 3 class based weighted fair queue class. How many
corresponding queues are created to accommodate these class?
5.What are the prerequisites for Multicast Auto-RP?
搜索本应是快乐的，不是么? 快乐搜索，有问必应！
微软隆重推出! 立即试用！
_______________________________________________
For more information regarding industry leading CCIE Lab training,
please visit www.ipexpert.com
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
