Switches

Question 1

types of switches 2

Answer 1

fixed configuration
modular

Question 2

what are modular switches

Answer 2

allow the addition of expansion modules offering flexibility to scale and customization of network architecture

Question 3

examples of expansion modules

Answer 3

application-specific(firewalls, wireless controllers and network analysis tools), modules for providing additional interfaces, power supplies or cooling fans

Question 4

fixed configuration

Answer 4

have a fixed number of ports hence they are not expandable

Question 5

types of fixed configuration switches 3

Answer 5

unmanaged, smart, fully managed l2 and l3 smart.

Question 6

Unmanaged switches are(simple, cost effective)

Answer 6

plug-and-play operations hence no configuration is required(basic connectivity)

Question 7

unmanaged switches capabilities

Answer 7

cable diagnostics
loop protection
energy saving using POE and EEE
prioritization of traffic using QOS settings

Question 8

smart switches capabilities

Answer 8

1 management
2 QOS to ensure prioritization of users and applications
3 security using 812* endpoint authentication and access control lists

Question 9

deployment of smart switches

Answer 9

1 network edge in large setups
2 used as the infrastructure in small networks
3 used in scenarios with low connectivity requirements

Question 10

examples of unmanaged switches 4

Answer 10

Net -gear 5 -port
cisco 8-24 port GB
Tivega
TP- link

Question 11

examples of smart switches 3

Answer 11

Cisco Catalyst 250 series
smart hub desktop
Net gear pro-safe 5-port

Question 12

Fully managed switches deployment

Answer 12

1 access/ aggregation in large networks
2 core switches in smaller networks

Question 13

security in fully managed switches is offered in 3 planes

Answer 13

1 data plane (user traffic)
2 control plane(communication between network devices)
3management plane (traffic of network and devices management)

Question 14

fully managed security mechanisms

Answer 14

1 network storm control
2 DOS protections
3 private VLAN’S
4 Secure management
5 control plane policing(copp)
6 802.1* support

Question 15

DOS protection features

Answer 15

1 Dynamic ARP inspection
2 IPV4 DHCP snooping
3 IPV6 first hop security
4 Neighbor discovery inspection
5 Neighbor binding integrity

Question 16

secure management methods

Answer 16

1 security copy protocol for downloads
2 web-based authentication
3 advanced authentication methods(RADIUS/TACUS)

Question 17

802.1* support

Answer 17

1 time-based
2 authentication
3 dynamic VLAN assignment
4 port. host-based authentication

Question 18

scalability of fully managed switches

Answer 18

they have large table sizes for VLANS, MAC addresses, IP routes and ACL policies

Question 19

redundancy of fully managed switches

Answer 19

support L3 redundancy using 1 VRRP(virtual router redundancy protocol)
2 extensive link aggregation groups
3 l2 protection features like spanning tree Guard and BPDU guard

Question 20

QOS of fully managed

Answer 20

TCP congestion Avoidance
multiple queues for traffic prioritization
traffic tagging by l2 and l3
rate-limiting traffic

Question 21

multicast of fully managed

Answer 21

support IGMP and MLP snooping functions for optimizing IPV4/V6 multicast traffic in the LAN

Question 22

factors to consider when choosing a LAN

Answer 22

Number of ports
Stack capabilities
Network switch speeds
Power over ethernet