A company uses smartcards with Personal Identification Numbers (PINs) as a two-step authentication process to access the network. This is an example of which of the following network authentication methods?
Public key authentication
[Public key authentication is a network authentication method that can be configured to use a smartcard and PIN. The user's private key can be configured with a passphrase that must be input to access the key, providing an additional measure of protection compared to host-based authentication.]
Which device can divide ports into Virtual Local Area Networks (VLANs)?
Managed Switch
[A managed switch will work as an unmanaged switch out-of-the-box but an administrator can connect to it over a management port, configure security settings, and then choose options for the switch's more advanced functionality, such as configuring VLANs.]
Which of the following authentication methods allows for Single Sign On (SSO) on a network?
Kerberos
[Kerberos allows Single Sign On (SSO) on a network that runs the Kerberos authentication protocol. Windows Active Directory domain networks use Kerberos.]
You need to configure a SOHO (Small Office Home Office) network to provide Internet Protocol (IP) Addresses only to devices allowed on the network. You have configured a list of devices that are allowed to access the network. Which feature should be enabled?
MAC (Media Access Control) Filtering
[MAC (Media Access Control) Filtering refers to a security access control method whereby the MAC address, unique to each network card, is used to determine access to the network. IP addresses are assigned to network devices.]
Which type of server uses a distributed database that contains information on domains and hosts within those domains?
DNS server
[Domain Name System (DNS) servers allow users to access resources using host names and Fully Qualified Domain Names (FQDN) by resolving those names to IP addresses. It uses a distributed database that contains information on domains and hosts within those domains.]
Which device limits network broadcasts and segments Internet Protocol (IP) address ranges?
Router
[Routers are devices designed to filter and transfer data packets between dissimilar types of computer networks by assigning a local Internet Protocol (IP) address to each of the devices.]
Which device can move data from an internal network, across the Internet, and to another network?
Router
[A router is responsible for moving data around a network of networks, known as an internetwork or internet.]
A switch connects nodes together in a single network, establishing a virtual circuit between any two network nodes. How does the switch perform this function?
It receives frames into a port buffer and reads the destination MAC address from the Ethernet frame.
You need to configure a SOHO (Small Office Home Office) network to be easily discovered by guest users. Which feature should be configured?
SSID (Service Set Identifier)
[SSID (Service Set Identifier) is used to uniquely identify any given wireless network by giving it a name. It distinguishes one wireless network from another, for example, a guest network.]
Which device provides microsegmentation without requiring any sort of configuration?
Unmanaged switch
[An unmanaged switch performs the microsegmentation function without requiring any sort of configuration. You just power it on, connect some hosts to it, and it works without any more intervention.]
What is the primary purpose of a Dynamic Host Configuration Protocol (DHCP) server?
Maintaining a pool of IP addresses and leasing these to network devices.
[The DHCP server maintains a pool of IP addresses and leases an address to any DHCP-enabled client when it starts up on the network. IP addresses no longer in use are automatically returned to the pool for reallocation.]