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20 Cards in this Set
- Front
- Back
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The time it takes for a change to be replicated to all DCs is called _______________. |
convergence
pg 63 |
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The default ______________ of any new site link is 100.
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cost
Cost is one of three attributes an admin can set in a site link object to help determine how traffic flows over a site link (the other two are schedule and frequency). Paths with lower numbers are chosen before higher numbers. |
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Intersite replication uses ___________ traffic to reduce the impact to bandwidth on corporate WAN links.
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compressed
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the KCC creates a dual _______________ to allow replication to take place in the opposite direction in the event that a single DC in the replication topology fails.
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counter rotating ring
This allows for a DC to fail without causing problems - traffic is routed in the opposite direction along the counter-rotating ring by the KCC (knowledge consistency checker) to allow replication to continue. pg 69 |
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The _______________ is an integral part of AD that automatically configures and maintains lists of the best paths between DCs. It updates its paths and lists every 15 minutes and can't be turned off.
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The KCC or knowledge consistency checker, pg 63-64.
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The guiding principle involved in the KCC's selection of replication partners is called the ______________, which states that no single DC should be more than three hops away from any DC that can originate a change to the network.
a - Rule of Thirds b - Three Hop Rule c - Rule of Three |
C
pg 64 |
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The purpose of the knowledge consistency checker (KCC) is to create a(n) ______________ between multiple domain controllers within a site as well as between sites. |
replication topology
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By default, all AD site links are _______________. |
transitive. |
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When AD detects a replication conflict in which two objects have been modified nearly simultaneously, the first attribute that AD will use as a tie-breaker is the ______________. |
Version ID The version ID is a number assigned to every attribute in AD that details how many times that attribute has changed. PG 62 |
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AD will designate a ____________ server within each site to manage inter-site replication activity. |
bridgehead server |
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The minimum ___________ you can assign to a site link is 15 minutes. |
frequency |
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Within a single site, DCs will use ______ ______ to inform other DCs that intrasite replication needs to take place. |
change notification |
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The KCC is responsible for calculating intrasite replication partners. During this process, what is the maximum number of hops that the KCC will allow between DCs? 2,3,4,5? |
3, as determined by the rule of 3's which allows for a maximum of 3 hops per path chosen. |
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Company XYZ has two connections between its sites in Detroit and Minneapolis. The first is a T-1 and the second a 128-kbps link. When setting up the site links for replication, what should you do to ensure that the 128-Kbps link is used only if the T-1 is unavailable?
a - set a cost of 1 for the T-1 and 5 for the 128-Kbps link. b - do the reverse of (a) c - leave the costs at their default value of 100 |
a |
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You are the admin for a network that has several remote sites all connected to HQ via site links for file transfer and replication purposes. You've been asked to create 5 new users on the network, some of which need immediate access to network apps. When asked by your manager how long replication of these new accounts will take, what should your response be?
a - replication occurs every 180 minutes by default b - replication occurs every 15 minutes c - replication occurs as soon as the account is added d - replication only occurs between 12-6am |
a
Pg 68 - A site link is the WAN connection via which sites are connected that allows replication to occur. Bandwidth is of primary concern when dealing with site links which is why communication is compressed before being sent and controlled via 3 parameters: cost, schedule, and frequency. The default frequency is 180 minutes. |
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Given the scenario in the previous question regarding how long it takes to replicate information in AD, how long would it take for other DCs within the HQ site to replicate the accounts belonging to the new users?
a - replication occurs every 180 minutes by default b - replication occurs every 15 minutes c - replication occurs within 45 seconds of the account being added d - replication only occurs between 12-6am |
c Pg 64 - DCs use change notification to inform one another when changes need to be replicated. Each DC will hold a change for 15 seconds before forwarding it, after which it will transmit the change to each of its replication partners in 3-second intervals.
Because the max number of hops between DCs is 3, the max replication latency for changes to reach their final destination is 15 seconds + 3 seconds per replication partner. |
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When would you disable automatic site link bridging within AD Sites and Services?
a - when you need to configure intersite rep b - when you wish to configure different costs for your site links c - when your physical network is not fully routed d - when you wish to control the hours during which intersite replication will occur |
c |
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To optimize client authentication and location of resources, which kind of object should each AD site contain?
a - site links b - costs c - connection objects d - subnets |
d Subnets conserve bandwidth by configuring clients with the closest AD DC |
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Which of the following naming contexts are replicated across an entire AD forest?
a - configuration and schema b - schema and DomainDNSZones c - configuration and ForestDNSZones d - schema and ForestDNSZones |
a
"Schema" denotes a naming context "Zones" are not |
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When creating a site link, you can configure it to use which of the following protocols?
a - TCP/IP or RPC over IP b - RPC over IP or SMTP c - SMTP or TCP/IP d - SMTP or CIDR |
b
AD uses remote procedure calls over IP (RPC over IP) by default for all replication traffic.
SMTP is an alternative protocol, and while it can do most of what you'll need, it can't replicate directory partitions and requires and enterprise CA (certification authority) fully integrated into AD. It can't be scheduled and so should only be used over very slow or unreliable WAN links. |
