An online retailer needs a service to support the nonrepudiation of the transaction. Which component is used for this service? ◦the private key of the retailer ◦the unique shared secret known only by the retailer and the customer ◦the public key of the retailer ◦the digital signatures ​ 온라인 소매업자는 그 거래의 반성을 지원하기 위한 서비스가 필요하다. 이 서비스에 사용되는 구성 요소는? ◦판매점 개인키 ◦판매점과 고객만 알고 있는 고유공유비밀 ◦판매점 공개키 ◦디지털서명* ​ ..

In what situation would a network administrator most likely implement root guard? ◦on all switch ports (used or unused) ◦on all switch ports that connect to a Layer 3 device ◦on all switch ports that connect to host devices ◦on all switch ports that connect to another switch ◦on all switch ports that connect to another switch that is not the root bridge ​ 어떤 상황에서 네트워크 관리자가 루트 가드를 구현할 가능성이 가장 높은가..

Which two parameters must match between neighboring OSPF routers in order to form an adjacency? (Choose two.) ◾router ID ◾IP address ◾process ID ◾cost ◾hello / dead timers ◾network types ​ 인접 OSPF 라우터를 구성하기 위해 일치해야 하는 두 파라미터는? (2개 선택) ◾router ID ◾IP address ◾process ID ◾cost ◾hello / dead timers* ◾network types* ​ Which command can be used to view the OSPF hello and dead time intervals? ◾show ip..

What are two reasons for creating an OSPF networkWhat information is contained within an OSPF type 4 LSA with multiple areas? (Choose two.) ◾to simplify configuration ◾to reduce SPF calculations ◾to reduce use of memory and processor resources ◾to provide areas in the network for routers that are not running OSPF ◾to ensure that an area is used to connect the network to the Internet ​ OSPF 네트워크를..