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EmergingNetworking版 - 求面试问题
相关主题
Another real world problementry level面经
ospf path 选择招人,contractor
攒人品,Amazon 二面 & Onsiteinter-as l2vpn
facebook电面。。。只能用惨烈来形容junos/junosE HA: GR/NSR, BFD with GR/NSR
AMAZON AWS network engineer 电面bgp-vpls vs ldp-vpls
recruiter准备的面试问题。问一个简单的PE router的问题
发一个J家的电面吧。是用CCIE找工作还是继续读CS?
贡献一个A家的1面。LISP看起来很cool啊
相关话题的讨论汇总
话题: what话题: ccnp话题: ospf话题: describe话题: does
进入EmergingNetworking版参与讨论
1 (共1页)
c*****i
发帖数: 631
1
被老板指派去面试,结果问了一半的时间就想不出问题了。。。
大家来说说你们都问啥或者被问啥,ccnp level的。
k*****s
发帖数: 231
2
ccnp level基本是implementation 和operation的吧?
问问他stp,
routing,
mulitcast,
snmp
trouble-shooting,
最简单的问问traceroute怎么工作的?
哈哈哈哈,随便问都可以问上2小时。
t*******r
发帖数: 3271
3
Describe the series of events going on when the 4 Routers connected the
Ethernet power up the same time.
What fields are contained in OSPF’s HELLO Packets ? (10 40 seconds)
Desribe Hello Packets when two routers are in the 2WAY state (neighbor field
) …
Can a router with a higher priority pre-empt a DR or BDR ?
What does Priority 0 mean ?
Describe the various LSA types (1,2,3,4,5) and what they are used for ?
1. Explain the 1st line – what is is (NET)
2. What’s in the second line ? (LSP-ID)
Explain the structure
What are the first 12 digits about (LSP-ID) ?
What is the penultimate (Node-ID) digit pair about ?
What is the last digit pair (Fragment) about ?
What is a Pseudo-Node and what problem does it solve ? (solving multiple
adjacencies problem on large LANs and the associated dynamics)
How does IS-IS do Fragmentation ? (no Fragmentation – The Application “IS-
IS” has to split its messages in certain fragments
What is the maximum size of an IS-IS Fragment (1492/1497)
What purpose does hello-padding serve ? (MTU >= 1492 detection)
Adjacency with every member of the LAN, not only the DIS: so, what’s the
rule of the DIS then? (to clue the LSPs together)
OSPF needs an Area 0 backbone: ISIS needs to have all L2/1 daisy-chained.
What are the basic PDU types ? (IIH, SNP, LSP)
Do we need to have the same timers for the establishment of the adjacency?
What information is stored in the 4 TLVs ?
What is the brief difference between the IS/IP Reach TLVs and the Extended
Versions of it (broader metric size 6 bits to 24/support for subTLVs)
What are subTLVs ? (colour, ipv4 interface address, neighbor, maximum link
bw, reservable bw, unreserved bw)
give some examples ?
When are subTLVs generated (TE, Admin tags)
What purpose serves the p2p Adjacency TLV (reliable 3-way handshake on p2p
circuits)
Is it possible to include that TLV in LAN-Hellos (yes, if you want to
suppress the Pseudo-node)
Redistribution of external routes in L1 areas: do they leak into L2 areas?
No unless you use wide metrics
Enumerate the mandatory attributes carried in *every* BGP Message (next-hop,
AS-path, origin)
Describe some further BGP attributes you know ….
How to originate routes …. (Cisco IOS Commands) ?
What ORIGIN has a via the network command announced route ? internal
What ORIGIN has a redistributed route ? incomplete
Aggregator: AS number and router-ID of the router performing the aggregation
ATOMIC_AGGREGATE: the router advertising the aggregate, attaches this
attribute to say that the path information might be incomplete.
Communities: NO-EXPORT, NO-ADVERTISE, NO-EPORT-SUBCONFED
What is the difference between eBGP & iBGP ?
Describe the NLRI for a prefix originated in AS#1 going to AS#3 hop by hop
What means a route being sync-ed?
How to achieve sync-ed routes ?
Assuming Router B does a next-hop self – which IP Address is inserted in
the NEXT_HOP attribute ?
If you want to establish an eBGP session between loopbacks, what do you need.
MED: always-compare-MED: why shouldn’t be used? AS-1 might consider MED100
very good while AS-2 very bad => you receive same MED but with different
meaning!!!
先贴这些
s*****g
发帖数: 1055
4
Those are great questions, but I would ask the same questions in different
ways if the position is for a network engineer, I would ask those questions
in operation way in stead of in academic way. for example, in stead of
asking what are those bits in OSPF hello packets, I would ask if OSPF
adjacency does not come up, what are the steps you are going to take to
resolve it.

field

【在 t*******r 的大作中提到】
: Describe the series of events going on when the 4 Routers connected the
: Ethernet power up the same time.
: What fields are contained in OSPF’s HELLO Packets ? (10 40 seconds)
: Desribe Hello Packets when two routers are in the 2WAY state (neighbor field
: ) …
: Can a router with a higher priority pre-empt a DR or BDR ?
: What does Priority 0 mean ?
: Describe the various LSA types (1,2,3,4,5) and what they are used for ?
: 1. Explain the 1st line – what is is (NET)
: 2. What’s in the second line ? (LSP-ID)

t*******r
发帖数: 3271
5
知道, 情景题发挥, 当然是应该做的.
我只是列了基本概念, 具体还要看candidate是否对网络有所理解

questions

【在 s*****g 的大作中提到】
: Those are great questions, but I would ask the same questions in different
: ways if the position is for a network engineer, I would ask those questions
: in operation way in stead of in academic way. for example, in stead of
: asking what are those bits in OSPF hello packets, I would ask if OSPF
: adjacency does not come up, what are the steps you are going to take to
: resolve it.
:
: field

b******s
发帖数: 5329
6
标准的书呆子型。

field

【在 t*******r 的大作中提到】
: Describe the series of events going on when the 4 Routers connected the
: Ethernet power up the same time.
: What fields are contained in OSPF’s HELLO Packets ? (10 40 seconds)
: Desribe Hello Packets when two routers are in the 2WAY state (neighbor field
: ) …
: Can a router with a higher priority pre-empt a DR or BDR ?
: What does Priority 0 mean ?
: Describe the various LSA types (1,2,3,4,5) and what they are used for ?
: 1. Explain the 1st line – what is is (NET)
: 2. What’s in the second line ? (LSP-ID)

b******s
发帖数: 5329
7
标准的书呆子型。

field

【在 t*******r 的大作中提到】
: Describe the series of events going on when the 4 Routers connected the
: Ethernet power up the same time.
: What fields are contained in OSPF’s HELLO Packets ? (10 40 seconds)
: Desribe Hello Packets when two routers are in the 2WAY state (neighbor field
: ) …
: Can a router with a higher priority pre-empt a DR or BDR ?
: What does Priority 0 mean ?
: Describe the various LSA types (1,2,3,4,5) and what they are used for ?
: 1. Explain the 1st line – what is is (NET)
: 2. What’s in the second line ? (LSP-ID)

j*a
发帖数: 14423
8
说出了我想说的

【在 b******s 的大作中提到】
: 标准的书呆子型。
:
: field

t*******r
发帖数: 3271
9
好吧, 我是书呆子...

【在 b******s 的大作中提到】
: 标准的书呆子型。
:
: field

c*****i
发帖数: 631
10
谢谢大家了
相关主题
recruiter准备的面试问题。entry level面经
发一个J家的电面吧。招人,contractor
贡献一个A家的1面。inter-as l2vpn
进入EmergingNetworking版参与讨论
x*********n
发帖数: 28013
11
问BGP sychronization,啥用,
问一问,什么是route reflector,用在哪里,其它什么protocol还有类似功能的,
哈哈。我不是ccnp level的。。
BTW,怎样才算ccnp level?3 year experience with ccnp certification?
z**r
发帖数: 17771
12
靠,你们那里居然招ccnp level的?

【在 c*****i 的大作中提到】
: 被老板指派去面试,结果问了一半的时间就想不出问题了。。。
: 大家来说说你们都问啥或者被问啥,ccnp level的。

c*****i
发帖数: 631
13
咋了,8级的活不就是ccnp.....

【在 z**r 的大作中提到】
: 靠,你们那里居然招ccnp level的?
x*********n
发帖数: 28013
14
8几是啥意思啊?就是大公司里面的级别?

【在 c*****i 的大作中提到】
: 咋了,8级的活不就是ccnp.....
j*a
发帖数: 14423
15
我是过期ccnp,嗯

【在 c*****i 的大作中提到】
: 咋了,8级的活不就是ccnp.....
z**r
发帖数: 17771
16
俺们team连junior的都要求1年左右达到ccie level,否则何来trusted advisor,客户
都知道的比你多一大截

【在 c*****i 的大作中提到】
: 咋了,8级的活不就是ccnp.....
x*********n
发帖数: 28013
17
cisco果然牛啊。

【在 z**r 的大作中提到】
: 俺们team连junior的都要求1年左右达到ccie level,否则何来trusted advisor,客户
: 都知道的比你多一大截

t*******r
发帖数: 3271
18
我觉得不是牛不牛的问题, 这是不同team服务对象不同的问题.
HTE应该都懂得比较多吧
he
发帖数: 2025
19
我当中介卖IE真题如何?
国内TAC也背真题再考试,跟当初新东方GRE一样。

【在 z**r 的大作中提到】
: 俺们team连junior的都要求1年左右达到ccie level,否则何来trusted advisor,客户
: 都知道的比你多一大截

c*****i
发帖数: 631
20
你们ISP大客户不一样嘛,我们这种enterprise小客户没那么高要求....

【在 z**r 的大作中提到】
: 俺们team连junior的都要求1年左右达到ccie level,否则何来trusted advisor,客户
: 都知道的比你多一大截

相关主题
junos/junosE HA: GR/NSR, BFD with GR/NSR是用CCIE找工作还是继续读CS?
bgp-vpls vs ldp-vplsLISP看起来很cool啊
问一个简单的PE router的问题Network Engineer 面经
进入EmergingNetworking版参与讨论
t*******r
发帖数: 3271
21
你以为就你有题啊?!
你以为国内没卖题的啊?!

【在 he 的大作中提到】
: 我当中介卖IE真题如何?
: 国内TAC也背真题再考试,跟当初新东方GRE一样。

he
发帖数: 2025
22
我有客户

【在 t*******r 的大作中提到】
: 你以为就你有题啊?!
: 你以为国内没卖题的啊?!

x*********n
发帖数: 28013
23
HTE是啥的缩写啊?

【在 t*******r 的大作中提到】
: 我觉得不是牛不牛的问题, 这是不同team服务对象不同的问题.
: HTE应该都懂得比较多吧

t*******r
发帖数: 3271
24
高摸工
就和山东德州东站 = Texas East一样的道理

【在 x*********n 的大作中提到】
: HTE是啥的缩写啊?
w***s
发帖数: 321
25
天,俺们乡下连6都是阿姨

【在 c*****i 的大作中提到】
: 咋了,8级的活不就是ccnp.....
n*****2
发帖数: 38
26
我买,谁有?
x*********n
发帖数: 28013
27
not that simple。
otherwise,why only a few of engineers got ie?

【在 n*****2 的大作中提到】
: 我买,谁有?
n*****2
发帖数: 38
28
a few?

【在 x*********n 的大作中提到】
: not that simple。
: otherwise,why only a few of engineers got ie?

1 (共1页)
进入EmergingNetworking版参与讨论
相关主题
LISP看起来很cool啊AMAZON AWS network engineer 电面
Network Engineer 面经recruiter准备的面试问题。
MPLS是不是依赖IP routing?发一个J家的电面吧。
Have you ever locked yourself out?贡献一个A家的1面。
Another real world problementry level面经
ospf path 选择招人,contractor
攒人品,Amazon 二面 & Onsiteinter-as l2vpn
facebook电面。。。只能用惨烈来形容junos/junosE HA: GR/NSR, BFD with GR/NSR
相关话题的讨论汇总
话题: what话题: ccnp话题: ospf话题: describe话题: does