CNAB TEST PAPER QUESTIONS AND ANSWERS
SURE A+
✔✔Kernel Phase - ✔✔mounts the root file system by executing /sbin/init/. Executes
/sbin/init
✔✔Init Phase - ✔✔searches the initialization table (/etc/inittab) for the default run-level.
✔✔Run-level Phase - ✔✔Executed from /etc/rc.d/rc*.d Default is level 3
✔✔Classful - ✔✔Variable-length subnetting masks (VLSM) not supported, CIDR not
supported.
✔✔Classless - ✔✔VLSM and Classless Inter-Domain Routing supporting.
✔✔distance vector - ✔✔sends entire routing table every 30-90 seconds,
broadcast updates,
vulnerable to routing loops
✔✔link state - ✔✔sends link state information when triggered
multicasts updates
✔✔BGP - ✔✔..., Border Gateway Protocol, a dynamic routing protocol. RFC 1267.
✔✔OSPF - ✔✔Open Shortest Path First; Link-state routing protocol, arranged in
hierarchic order
✔✔LSA - ✔✔Link State Advertisement
✔✔Connected Interface - ✔✔0
✔✔Static Route - ✔✔1
, ✔✔External BGP route - ✔✔20
✔✔Internal EIGRP route - ✔✔90
✔✔IGRP route - ✔✔100
✔✔OSPF route - ✔✔110
✔✔IS-IS route - ✔✔115
✔✔RIP route - ✔✔120
✔✔Route of unknown origin - ✔✔255
✔✔RIPv2 - ✔✔distance-vector routing protocol, designed for smaller networks
✔✔RIPng - ✔✔Routing Information Protocol next generation (IPv6)
✔✔Interior Gateway Protocols - ✔✔Used to exchange routing information with an
autonomous system.
✔✔Autonomous Systems - ✔✔A set of Routable IP prefixes that are under a network or
collection of networks managed by an entity.
✔✔Path-Vector Routing Protocols - ✔✔Maintains path information that gets updated
dynamically.
Each entry in the routing table contains the destination network, next router, and path to
reach the destination.
✔✔Administrative Distance - ✔✔Routers use this value to select the best path when
there are two or more paths to the destination, and counts the reliability of a routing
protocol
✔✔layer 7 pdu - ✔✔data
✔✔layer 6 pdu - ✔✔data
✔✔layer 5 pdu - ✔✔data
✔✔layer 4 pdu - ✔✔segment
✔✔layer 3 pdu - ✔✔packet
SURE A+
✔✔Kernel Phase - ✔✔mounts the root file system by executing /sbin/init/. Executes
/sbin/init
✔✔Init Phase - ✔✔searches the initialization table (/etc/inittab) for the default run-level.
✔✔Run-level Phase - ✔✔Executed from /etc/rc.d/rc*.d Default is level 3
✔✔Classful - ✔✔Variable-length subnetting masks (VLSM) not supported, CIDR not
supported.
✔✔Classless - ✔✔VLSM and Classless Inter-Domain Routing supporting.
✔✔distance vector - ✔✔sends entire routing table every 30-90 seconds,
broadcast updates,
vulnerable to routing loops
✔✔link state - ✔✔sends link state information when triggered
multicasts updates
✔✔BGP - ✔✔..., Border Gateway Protocol, a dynamic routing protocol. RFC 1267.
✔✔OSPF - ✔✔Open Shortest Path First; Link-state routing protocol, arranged in
hierarchic order
✔✔LSA - ✔✔Link State Advertisement
✔✔Connected Interface - ✔✔0
✔✔Static Route - ✔✔1
, ✔✔External BGP route - ✔✔20
✔✔Internal EIGRP route - ✔✔90
✔✔IGRP route - ✔✔100
✔✔OSPF route - ✔✔110
✔✔IS-IS route - ✔✔115
✔✔RIP route - ✔✔120
✔✔Route of unknown origin - ✔✔255
✔✔RIPv2 - ✔✔distance-vector routing protocol, designed for smaller networks
✔✔RIPng - ✔✔Routing Information Protocol next generation (IPv6)
✔✔Interior Gateway Protocols - ✔✔Used to exchange routing information with an
autonomous system.
✔✔Autonomous Systems - ✔✔A set of Routable IP prefixes that are under a network or
collection of networks managed by an entity.
✔✔Path-Vector Routing Protocols - ✔✔Maintains path information that gets updated
dynamically.
Each entry in the routing table contains the destination network, next router, and path to
reach the destination.
✔✔Administrative Distance - ✔✔Routers use this value to select the best path when
there are two or more paths to the destination, and counts the reliability of a routing
protocol
✔✔layer 7 pdu - ✔✔data
✔✔layer 6 pdu - ✔✔data
✔✔layer 5 pdu - ✔✔data
✔✔layer 4 pdu - ✔✔segment
✔✔layer 3 pdu - ✔✔packet
