1. Which LSA type is originated by the designated router only? Highlight for answer: Type-2 (Network) LSA
Category: CCIE R&S
Routing and Switching
CCNA Quick Notes – Routing
1.How do OSPF-enabled routers build adjacencies and exchange their routing tables? OSPF-enabled routers build adjacencies by sending Hello packets out through all OSPF-enabled interfaces. If these routers share a command link and…
CCNA Quick Notes – Internetworking
1.What are the three layers of the Cisco Hierarchical Model? The three layers of the Cisco Hierarchical Model are:1 The access layer The distribution layer The core layer 2.In the Cisco Hierarchical…
CCNA Quick Notes – WAN
1.The three WAN connection types available are leased lines, circuit-switched, and packet-switched. Define the differences between each connection type. Leased lines are dedicated point-to-point lines that provide a single preestablished WAN communication…
CCNA Quick Notes – LAN
1. What is carrier sense multiple access collision detect (CSMA/CD)? CSMA/CD describes the Ethernet access method. In CSMA/CD, many stations can transmit on the same cable, and no station has priority over…
CCIE R&S Core Knowledge Question(3)
1. What is the primary difference between SNMP traps and SNMP inform requests (informs)? Highlight for answer: SNMP informs are traps that include a request for confirmation of receipt from the SNMP…
CCIE R&S Core Knowledge Question(2)
1. Which point-to-multipoint technology utilizes an IPv4 address embedded in an IPv6 address (the IPv4 address is converted to hexadecimal and then concatenated to the prefix 2002::/16) to allow isolated IPv6 domains…
CCIE R&S Core Knowledge Question(1)
1. Which LSA type is flooded throughout the autonomous system by an Area Border Router and contains an AS Boundary Router address? Highlight for answer: Type-4 LSA (ASBR Summary) 2. R1#ping FE80::2…
CCIE R&S Lab Exam (Open-Ended-Question)
First，let’s look at two Cisco official declarations about the open-ended question of CCIE R&S Lab Exam. Jan 14, 2009 Changes to CCIE Lab and Written Exam Question Format and Scoring Effective February…